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within the military ranges from educational purposes, training exercises and sustainability technology. the technology used for educational purposes within the military are mainly wearables that tracks a soldier ' s vitals. by tracking a soldier ' s heart rate, blood pressure, emotional status, etc. helps the ... | A) recycling aluminum cans. |
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##morphology studies the origin of landscapes. structural geology studies the deformation of rocks to produce mountains and lowlands. resource geology studies how energy resources can be obtained from minerals. environmental geology studies how pollution and contaminants affect soil and rock. mineralogy is the... | A) erosion. |
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remediation include ; soil contamination, hazardous waste, groundwater contamination, oil, gas and chemical spills. there are three most common types of environmental remediation. these include soil, water, and sediment remediation. soil remediation consists of removing contaminants in soil, as these pose grea... | B) oceans |
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by charles darwin as " possibly the greatest ever made by man ". archaeological, dietary, and social evidence point to " continuous [ human ] fire - use " at least 1. 5 mya. fire, fueled with wood and charcoal, allowed early humans to cook their food to increase its digestibility, improving its nutrient value ... | C) conduction. |
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becomes quite gentle. accordingly, in large basins, rivers in most cases begin as torrents with a variable flow, and end as gently flowing rivers with a comparatively regular discharge. the irregular flow of rivers throughout their course forms one of the main difficulties in devising works for mitigating inun... | A) erosion |
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shuttle from the heat of re - entry into the earth ' s atmosphere. one example is reinforced carbon - carbon ( rcc ), the light gray material, which withstands re - entry temperatures up to 1, 510 °c ( 2, 750 °f ) and protects the space shuttle ' s wing leading edges and nose cap. rcc is a laminated composite ... | C) camouflage |
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be a low - cost, feasible, and accessible way for promoting pa. " essentially, this insinuates that wearable technology can be beneficial to everyone and really is not cost prohibited. also, when consistently seeing wearable technology being actually utilized and worn by other people, it promotes the idea of p... | D) by increasing communication |
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= = = = = = environmental remediation = = = environmental remediation is the process through which contaminants or pollutants in soil, water and other media are removed to improve environmental quality. the main focus is the reduction of hazardous substances within the environment. some of the areas involved i... | A) water |
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with one allele inducing a change on the other. = = plant evolution = = the chloroplasts of plants have a number of biochemical, structural and genetic similarities to cyanobacteria, ( commonly but incorrectly known as " blue - green algae " ) and are thought to be derived from an ancient endosymbiotic relatio... | B) reduction in oxygen levels. |
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##morphology studies the origin of landscapes. structural geology studies the deformation of rocks to produce mountains and lowlands. resource geology studies how energy resources can be obtained from minerals. environmental geology studies how pollution and contaminants affect soil and rock. mineralogy is the... | D) moving water |
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designates the relationship between two or more variables. conceptual definition : description of a concept by relating it to other concepts. operational definition : details in regards to defining the variables and how they will be measured / assessed in the study. gathering of data : consists of identifying ... | C) in a written report |
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of the device. examples of radio remote control : unmanned aerial vehicle ( uav, drone ) – a drone is an aircraft without an onboard pilot, flown by remote control by a pilot in another location, usually in a piloting station on the ground. they are used by the military for reconnaissance and ground attack, an... | D) horned lizard |
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three of what is called the six simple machines, from which all machines are based. these machines are the inclined plane, the wedge, and the lever, which allowed the ancient egyptians to move millions of limestone blocks which weighed approximately 3. 5 tons ( 7, 000 lbs. ) each into place to create structure... | C) inclined plane |
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the thickness of freshly made soap films is usually in the micron range, and interference colors make thickness fluctuations easily visible. circular patterns of constant thickness are commonly observed, either a thin film disc in a thicker film or the reverse. in this letter, we evidence the line tension at t... | B) burning them with a candle |
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, depending on the type of receptor. for instance, neurotransmitters that bind with an inotropic receptor can alter the excitability of a target cell. other types of receptors include protein kinase receptors ( e. g., receptor for the hormone insulin ) and g protein - coupled receptors. activation of g protein... | D) an organism |
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commonly called plastics and rubber. plastics and rubber are the final product, created after one or more polymers or additives have been added to a resin during processing, which is then shaped into a final form. plastics in former and in current widespread use include polyethylene, polypropylene, polyvinyl c... | C) sound |
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molecular nitrogen is the most commonly assumed background gas that supports habitability on rocky planets. despite its chemical inertness, nitrogen molecule is broken by lightning, hot volcanic vents, and bolide impacts, and can be converted into soluble nitrogen compounds and then sequestered in the ocean. t... | D) preventing too many trees from being cut down |
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generation times. corn has been used to study mechanisms of photosynthesis and phloem loading of sugar in c4 plants. the single celled green alga chlamydomonas reinhardtii, while not an embryophyte itself, contains a green - pigmented chloroplast related to that of land plants, making it useful for study. a re... | A) Leaves help the plant make food. |
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ion or cation. when an atom gains an electron and thus has more electrons than protons, the atom is a negatively charged ion or anion. cations and anions can form a crystalline lattice of neutral salts, such as the na + and cl− ions forming sodium chloride, or nacl. examples of polyatomic ions that do not spli... | C) more electrons than protons. |
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consisting of several distinct layers, often referred to as spheres : the lithosphere, the hydrosphere, the atmosphere, and the biosphere, this concept of spheres is a useful tool for understanding the earth ' s surface and its various processes these correspond to rocks, water, air and life. also included by ... | D) Evaporation will increase. |
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##ist, sio2, silicon nitride, and various metals for masking. its reaction to silicon is " plasmaless ", is purely chemical and spontaneous and is often operated in pulsed mode. models of the etching action are available, and university laboratories and various commercial tools offer solutions using this appro... | A) oil |
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##s ( sometimes called pressurized caissons ), which penetrate soft mud, are bottomless boxes sealed at the top and filled with compressed air to keep water and mud out at depth. an airlock allows access to the chamber. workers, called sandhogs in american english, move mud and rock debris ( called muck ) from... | C) new rock is formed |
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energy they need to exist. plants, algae and cyanobacteria are the major groups of organisms that carry out photosynthesis, a process that uses the energy of sunlight to convert water and carbon dioxide into sugars that can be used both as a source of chemical energy and of organic molecules that are used in t... | C) the Sun |
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be the more significant to modern soil theory than fallou ' s. previously, soil had been considered a product of chemical transformations of rocks, a dead substrate from which plants derive nutritious elements. soil and bedrock were in fact equated. dokuchaev considers the soil as a natural body having its own... | A) They weather rocks with acid. |
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sciences are the clinical diagnostic services that apply laboratory techniques to diagnosis and management of patients. in the united states, these services are supervised by a pathologist. the personnel that work in these medical laboratory departments are technically trained staff who do not hold medical deg... | C) clean up all materials and workspaces after investigations |
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oscillations of the sun have been used to understand its interior structure. the extension of similar studies to more distant stars has raised many difficulties despite the strong efforts of the international community over the past decades. the corot ( convection rotation and planetary transits ) satellite, l... | A) Earth rotates on its axis. |
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on a large scale provided protection from insect pests or tolerance to herbicides. fungal and virus resistant crops have also been developed or are in development. this makes the insect and weed management of crops easier and can indirectly increase crop yield. gm crops that directly improve yield by accelerat... | A) selective breeding. |
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, lightning strikes, tornadoes, building fires, wildfires, and mass shootings disabling most of the system if not the entirety of it. geographic redundancy locations can be more than 621 miles ( 999 km ) continental, more than 62 miles apart and less than 93 miles ( 150 km ) apart, less than 62 miles apart, bu... | C) The carrying capacity of the soil for plant growth is reduced. |
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also launched missions to mercury in 2004, with the messenger probe demonstrating as the first use of a solar sail. nasa also launched probes to the outer solar system starting in the 1960s. pioneer 10 was the first probe to the outer planets, flying by jupiter, while pioneer 11 provided the first close up vie... | D) Earth is one astronomical unit from the Sun. |
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which could be used as tools, primarily in the form of choppers or scrapers. these tools greatly aided the early humans in their hunter - gatherer lifestyle to perform a variety of tasks including butchering carcasses ( and breaking bones to get at the marrow ) ; chopping wood ; cracking open nuts ; skinning a... | B) Farmers can remove more trees in less time. |
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cobalt nanowires with a diameter in the range between 50 to 100nm can be prepared as single - crystal wires with the easy axis ( the c - axis ) perpendicular to the wire axis. the competition between the crystal anisotropy and demagnetization energy frustrates the magnetization direction. a periodic modulation... | A) an electric current |
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by which botanists group organisms into categories such as genera or species. biological classification is a form of scientific taxonomy. modern taxonomy is rooted in the work of carl linnaeus, who grouped species according to shared physical characteristics. these groupings have since been revised to align be... | B) bacteria |
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##copy is the study of fingerprints. forensic document examination or questioned document examination answers questions about a disputed document using a variety of scientific processes and methods. many examinations involve a comparison of the questioned document, or components of the document, with a set of ... | A) breathing mask |
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participates as a consumer, resource, or both in consumer – resource interactions, which form the core of food chains or food webs. there are different trophic levels within any food web, with the lowest level being the primary producers ( or autotrophs ) such as plants and algae that convert energy and inorga... | C) slowing the spread of disease. |
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classified as an acid or a base. there are several different theories which explain acid – base behavior. the simplest is arrhenius theory, which states that an acid is a substance that produces hydronium ions when it is dissolved in water, and a base is one that produces hydroxide ions when dissolved in water... | A) neutralization |
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the best - suited crops ( e. g., those with the highest yields ) to produce enough food to support a growing population. as crops and fields became increasingly large and difficult to maintain, it was discovered that specific organisms and their by - products could effectively fertilize, restore nitrogen, and ... | B) as an enzyme that aids in digestion |
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an important question of theoretical physics is whether sound is able to propagate in vacuums at all and if this is the case, then it must lead to the reinterpretation of one zero - restmass particle which corresponds to vacuum - sound waves. taking the electron - neutrino as the corresponding particle, its ob... | D) a vacuum. |
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the celebrated franck - hertz experiment is reinterpreted by analogy with the glimmentladung experiment, formerly performed by heinrich hertz.
it was the best of times ; it was the worst of times is the way dickens begins the tale of two cities. the line is appropriate to our time in particle physics. it is th... | D) to determine if the results are similar |
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##lling, pipe jacking and other operations. a caisson is sunk by self - weight, concrete or water ballast placed on top, or by hydraulic jacks. the leading edge ( or cutting shoe ) of the caisson is sloped out at a sharp angle to aid sinking in a vertical manner ; it is usually made of steel. the shoe is gener... | A) gravity |
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the gas giant planets in the solar system have a retinue of icy moons, and we expect giant exoplanets to have similar satellite systems. if a jupiter - like planet were to migrate toward its parent star the icy moons orbiting it would evaporate, creating atmospheres and possible habitable surface oceans. here,... | B) The adult mosquitoes would have fewer places to lay eggs. |
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there are a few different mechanisms that can cause white dwarf stars to vary in brightness, providing opportunities to probe the physics, structures, and formation of these compact stellar remnants. the observational characteristics of the three most common types of white dwarf variability are summarized : st... | D) yellow |
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background : african swine fever is among the most devastating viral diseases of pigs. despite nearly a century of research, there is still no safe and effective vaccine available. the current situation is that either vaccines are safe but not effective, or they are effective but not safe. findings : the asf v... | B) A fever is an internal response to an internal stimulus. |
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affect static bodies dynamics, the study of how forces affect moving bodies. dynamics includes kinematics ( about movement, velocity, and acceleration ) and kinetics ( about forces and resulting accelerations ). mechanics of materials, the study of how different materials deform under various types of stress f... | B) the direction of the forces |
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from the oil of jasminum grandiflorum which regulates wound responses in plants by unblocking the expression of genes required in the systemic acquired resistance response to pathogen attack. in addition to being the primary energy source for plants, light functions as a signalling device, providing informatio... | A) as a hypothesis |
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variation in total solar irradiance is thought to have little effect on the earth ' s surface temperature because of the thermal time constant - - the characteristic response time of the earth ' s global surface temperature to changes in forcing. this time constant is large enough to smooth annual variations b... | C) 365 |
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winds from agn and quasars will form large amounts of dust, as the cool gas in these winds passes through the ( pressure, temperature ) region where dust is formed in agb stars. conditions in the gas are benign to dust at these radii. as a result quasar winds may be a major source of dust at high redshifts, ob... | A) reflects the sunlight |
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manifold of dimension two ( see § topological surface ). a differentiable surface is a surfaces that is a differentiable manifold ( see § differentiable surface ). every differentiable surface is a topological surface, but the converse is false. a " surface " is often implicitly supposed to be contained in a e... | D) texture |
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of these organisms. the energy in the red and blue light that these pigments absorb is used by chloroplasts to make energy - rich carbon compounds from carbon dioxide and water by oxygenic photosynthesis, a process that generates molecular oxygen ( o2 ) as a by - product. the light energy captured by chlorophy... | C) carbon dioxide (CO2) and water (H2O) |
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. most cells are very small, with diameters ranging from 1 to 100 micrometers and are therefore only visible under a light or electron microscope. there are generally two types of cells : eukaryotic cells, which contain a nucleus, and prokaryotic cells, which do not. prokaryotes are single - celled organisms s... | A) What is the composition of the cell walls? |
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time - dependent distribution of the global extinction of megafauna is compared with the growth of human population. there is no correlation between the two processes. furthermore, the size of human population and its growth rate were far too small to have any significant impact on the environment and on the l... | D) The death rate will increase. |
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##s ( sometimes called pressurized caissons ), which penetrate soft mud, are bottomless boxes sealed at the top and filled with compressed air to keep water and mud out at depth. an airlock allows access to the chamber. workers, called sandhogs in american english, move mud and rock debris ( called muck ) from... | B) They will recrystallize into new rock. |
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. the first major technologies were tied to survival, hunting, and food preparation. stone tools and weapons, fire, and clothing were technological developments of major importance during this period. human ancestors have been using stone and other tools since long before the emergence of homo sapiens approxim... | A) They make small objects easier to see. |
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the structural components of cells. as a by - product of photosynthesis, plants release oxygen into the atmosphere, a gas that is required by nearly all living things to carry out cellular respiration. in addition, they are influential in the global carbon and water cycles and plant roots bind and stabilise so... | C) carbon dioxide |
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sight, hearing, touch, and sometimes smell ( e. g., in infection, uremia, diabetic ketoacidosis ). four actions are the basis of physical examination : inspection, palpation ( feel ), percussion ( tap to determine resonance characteristics ), and auscultation ( listen ), generally in that order, although auscu... | D) nerves |
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if a fintie group g acts topologically and faithfully on r ^ 3, then g is a subgroup of o ( 3 )
##ructing the channel depends on the nature of the shoals. a soft shoal in the bed of a river is due to deposit from a diminution in velocity of flow, produced by a reduction in fall and by a widening of the channel... | C) quality of water |
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the origin of the arc - shaped stellar complexes in the lmc4 region is still unknown. these perfect arcs could not have been formed by o - stars and sne in their centers ; the strong arguments exist also against the possibility of their formation from infalling gas clouds. the origin from microquasars / grb je... | D) volcanic activity. |
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##tes, i. e., genes are unlinked. an exception to this rule would include traits that are sex - linked. test crosses can be performed to experimentally determine the underlying genotype of an organism with a dominant phenotype. a punnett square can be used to predict the results of a test cross. the chromosome... | D) gene |
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muck ) from the edge of the workspace to a water - filled pit, connected by a tube ( called the muck tube ) to the surface. a crane at the surface removes the soil with a clamshell bucket. the water pressure in the tube balances the air pressure, with excess air escaping up the muck tube. the pressurized air f... | D) sound |
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, specialty and engineering plastics. polyvinyl chloride ( pvc ) is widely used, inexpensive, and annual production quantities are large. it lends itself to a vast array of applications, from artificial leather to electrical insulation and cabling, packaging, and containers. its fabrication and processing are ... | C) to lay hundreds of eggs so a few will survive |
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listen ), generally in that order, although auscultation occurs prior to percussion and palpation for abdominal assessments. the clinical examination involves the study of : abdomen and rectum cardiovascular ( heart and blood vessels ) general appearance of the patient and specific indicators of disease ( nutr... | B) carrying oxygen to cells |
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classified as an acid or a base. there are several different theories which explain acid – base behavior. the simplest is arrhenius theory, which states that an acid is a substance that produces hydronium ions when it is dissolved in water, and a base is one that produces hydroxide ions when dissolved in water... | A) a candle burning |
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is the genus, and columbianum the specific epithet. the combination is the name of the species. when writing the scientific name of an organism, it is proper to capitalise the first letter in the genus and put all of the specific epithet in lowercase. additionally, the entire term is ordinarily italicised ( or... | B) fur |
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current in passing over from one concave bank to the next on the opposite side. the lowering of such a shoal by dredging merely effects a temporary deepening, for it soon forms again from the causes which produced it. the removal, moreover, of the rocky obstructions at rapids, though increasing the depth and e... | D) rainwater. |
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##morphology studies the origin of landscapes. structural geology studies the deformation of rocks to produce mountains and lowlands. resource geology studies how energy resources can be obtained from minerals. environmental geology studies how pollution and contaminants affect soil and rock. mineralogy is the... | A) a solid natural material with a crystal structure |
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energy they need to exist. plants, algae and cyanobacteria are the major groups of organisms that carry out photosynthesis, a process that uses the energy of sunlight to convert water and carbon dioxide into sugars that can be used both as a source of chemical energy and of organic molecules that are used in t... | A) seaweed |
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and measuring radiation levels. the surveyor program conducted uncrewed lunar landings and takeoffs, as well as taking surface and regolith observations. despite the setback caused by the apollo 1 fire, which killed three astronauts, the program proceeded. apollo 8 was the first crewed spacecraft to leave low ... | A) one |
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and their competitive or mutualistic interactions with other species. some ecologists even rely on empirical data from indigenous people that is gathered by ethnobotanists. this information can relay a great deal of information on how the land once was thousands of years ago and how it has changed over that ti... | D) Drought conditions increase competition among consumers. |
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##morphology studies the origin of landscapes. structural geology studies the deformation of rocks to produce mountains and lowlands. resource geology studies how energy resources can be obtained from minerals. environmental geology studies how pollution and contaminants affect soil and rock. mineralogy is the... | C) Particles are compressed into layers. |
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listing of diseases in the family that may impact the patient. a family tree is sometimes used. history of present illness ( hpi ) : the chronological order of events of symptoms and further clarification of each symptom. distinguishable from history of previous illness, often called past medical history ( pmh... | A) athlete's foot - fungi |
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##aggeration to say that the tip of the radicle.. acts like the brain of one of the lower animals.. directing the several movements ". about the same time, the role of auxins ( from the greek auxein, to grow ) in control of plant growth was first outlined by the dutch scientist frits went. the first known auxi... | D) responding to the environment |
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listing of diseases in the family that may impact the patient. a family tree is sometimes used. history of present illness ( hpi ) : the chronological order of events of symptoms and further clarification of each symptom. distinguishable from history of previous illness, often called past medical history ( pmh... | D) contact with an infected person |
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in 2015 the fda approved the first gm salmon for commercial production and consumption. there is a scientific consensus that currently available food derived from gm crops poses no greater risk to human health than conventional food, but that each gm food needs to be tested on a case - by - case basis before i... | A) cook food to proper temperatures. |
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usability engineering, it ' s important target and identify human errors when interacting with the product of interest because if a user is expected to engage with a product, interface, or service in some way, the very introduction of a human in that engagement increases the potential of encountering human err... | A) A control group was not used. |
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variation in total solar irradiance is thought to have little effect on the earth ' s surface temperature because of the thermal time constant - - the characteristic response time of the earth ' s global surface temperature to changes in forcing. this time constant is large enough to smooth annual variations b... | B) Water vapor condenses into droplets. |
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other contemporary production centre. the earliest documented use of lead ( possibly native or smelted ) in the near east dates from the 6th millennium bc, is from the late neolithic settlements of yarim tepe and arpachiyah in iraq. the artifacts suggest that lead smelting may have predated copper smelting. me... | C) It was once covered by an ocean. |
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are the stone - paved streets of the city - state of ur, dating to c. 4, 000 bce, and timber roads leading through the swamps of glastonbury, england, dating to around the same period. the first long - distance road, which came into use around 3, 500 bce, spanned 2, 400 km from the persian gulf to the mediterr... | D) meter |
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= glass - ceramics = = glass - ceramic materials share many properties with both glasses and ceramics. glass - ceramics have an amorphous phase and one or more crystalline phases and are produced by a so - called " controlled crystallization ", which is typically avoided in glass manufacturing. glass - ceramic... | C) gravity |
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of embryophytes ( land plants ) is called phytology. bryology is the study of mosses ( and in the broader sense also liverworts and hornworts ). pteridology ( or filicology ) is the study of ferns and allied plants. a number of other taxa of ranks varying from family to subgenus have terms for their study, inc... | B) Gregor Mendel |
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one of the greatest discoveries of modern times is that of the expanding universe, almost invariably attributed to hubble ( 1929 ). what is not widely known is that the original treatise by lemaitre ( 1927 ) contained a rich fusion of both theory and of observation. stiglers law of eponymy is yet again affirme... | C) detailed observation of planets |
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classes according to pore size : the form and shape of the membrane pores are highly dependent on the manufacturing process and are often difficult to specify. therefore, for characterization, test filtrations are carried out and the pore diameter refers to the diameter of the smallest particles which could no... | A) graduated cylinder |
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higher concentrations of atmospheric nitrous oxide ( n2o ) are expected to slightly warm earth ' s surface because of increases in radiative forcing. radiative forcing is the difference in the net upward thermal radiation flux from the earth through a transparent atmosphere and radiation through an otherwise i... | B) They move faster. |
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classes according to pore size : the form and shape of the membrane pores are highly dependent on the manufacturing process and are often difficult to specify. therefore, for characterization, test filtrations are carried out and the pore diameter refers to the diameter of the smallest particles which could no... | A) ruler |
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becomes quite gentle. accordingly, in large basins, rivers in most cases begin as torrents with a variable flow, and end as gently flowing rivers with a comparatively regular discharge. the irregular flow of rivers throughout their course forms one of the main difficulties in devising works for mitigating inun... | C) move to a new area to find food |
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10 kgy most food, which is ( with regard to warming ) physically equivalent to water, would warm by only about 2. 5 °c ( 4. 5 °f ). the specialty of processing food by ionizing radiation is the fact, that the energy density per atomic transition is very high, it can cleave molecules and induce ionization ( hen... | C) calorie |
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cobalt nanowires with a diameter in the range between 50 to 100nm can be prepared as single - crystal wires with the easy axis ( the c - axis ) perpendicular to the wire axis. the competition between the crystal anisotropy and demagnetization energy frustrates the magnetization direction. a periodic modulation... | C) to create a magnetic field |
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enough to rise to the surface — giving birth to volcanoes. = = atmospheric science = = atmospheric science initially developed in the late - 19th century as a means to forecast the weather through meteorology, the study of weather. atmospheric chemistry was developed in the 20th century to measure air pollutio... | C) weather and climate |
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substrate - level phosphorylation, which does not require oxygen. = = = photosynthesis = = = photosynthesis is a process used by plants and other organisms to convert light energy into chemical energy that can later be released to fuel the organism ' s metabolic activities via cellular respiration. this chemic... | D) plants photosynthesizing |
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this process may release or absorb energy. when the resulting nucleus is lighter than that of iron, energy is normally released ; when the nucleus is heavier than that of iron, energy is generally absorbed. this process of fusion occurs in stars, which derive their energy from hydrogen and helium. they form, t... | D) fusion |
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endothermic reactions, the reaction absorbs heat from the surroundings. chemical reactions are invariably not possible unless the reactants surmount an energy barrier known as the activation energy. the speed of a chemical reaction ( at given temperature t ) is related to the activation energy e, by the boltzm... | B) chemical energy |
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major stellar - wind emission features in the spectrum of eta car have recently decreased by factors of order 2 relative to the continuum. this is unprecedented in the modern observational record. the simplest, but unproven, explanation is a rapid decrease in the wind density.
= = = = = = environmental remedia... | B) respiratory health |
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from the oil of jasminum grandiflorum which regulates wound responses in plants by unblocking the expression of genes required in the systemic acquired resistance response to pathogen attack. in addition to being the primary energy source for plants, light functions as a signalling device, providing informatio... | C) photosynthesis |
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. most cells are very small, with diameters ranging from 1 to 100 micrometers and are therefore only visible under a light or electron microscope. there are generally two types of cells : eukaryotic cells, which contain a nucleus, and prokaryotic cells, which do not. prokaryotes are single - celled organisms s... | D) gametes |
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c. 4000 bc, associated with the maadi culture. this represents the earliest evidence for smelting in africa. the varna necropolis, bulgaria, is a burial site located in the western industrial zone of varna, approximately 4 km from the city centre, internationally considered one of the key archaeological sites ... | C) comparing to characteristics of known dinosaurs. |
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is the science / subject of measuring and modelling the process of care in health and social care systems. nosology is the classification of diseases for various purposes. occupational medicine is the provision of health advice to organizations and individuals to ensure that the highest standards of health and... | C) athletes who do not stretch before working out |
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are the stone - paved streets of the city - state of ur, dating to c. 4, 000 bce, and timber roads leading through the swamps of glastonbury, england, dating to around the same period. the first long - distance road, which came into use around 3, 500 bce, spanned 2, 400 km from the persian gulf to the mediterr... | B) automobiles |
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of tool usage was found in ethiopia within the great rift valley, dating back to 2. 5 million years ago. the earliest methods of stone tool making, known as the oldowan " industry ", date back to at least 2. 3 million years ago. this era of stone tool use is called the paleolithic, or " old stone age ", and sp... | A) compaction and cementation |
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##sphere ( or lithosphere ). earth science can be considered to be a branch of planetary science but with a much older history. = = geology = = geology is broadly the study of earth ' s structure, substance, and processes. geology is largely the study of the lithosphere, or earth ' s surface, including the cru... | C) The Moon was probably formed from material from Earth. |
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species occupying the same geographical area at the same time. a biological interaction is the effect that a pair of organisms living together in a community have on each other. they can be either of the same species ( intraspecific interactions ), or of different species ( interspecific interactions ). these ... | B) recycled when organisms die. |
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remediation include ; soil contamination, hazardous waste, groundwater contamination, oil, gas and chemical spills. there are three most common types of environmental remediation. these include soil, water, and sediment remediation. soil remediation consists of removing contaminants in soil, as these pose grea... | C) people who consume fish from the bay |
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and their competitive or mutualistic interactions with other species. some ecologists even rely on empirical data from indigenous people that is gathered by ethnobotanists. this information can relay a great deal of information on how the land once was thousands of years ago and how it has changed over that ti... | C) A wolf pack howls to warn other wolves to stay away. |
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