question stringlengths 68 502 | answer stringclasses 4
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Question: Lobsters are what kind of food source?
Options:
A. arthropod
B. combination
C. sauropod
D. mollusc | A |
Question: Helicopters store large amounts of rotational energy of what type in their blades?
Options:
A. thermal
B. magnetic
C. kinetic
D. seismic | C |
Question: What branch of science is the study of matter and energy?
Options:
A. environmental science
B. physical science
C. Chemistry
D. Thermodynamics | B |
Question: Plants and algae maintain the atmosphere. during photosynthesis, they add oxygen and remove what?
Options:
A. water
B. methane
C. carbon dioxide
D. nitrogen | C |
Question: Electric substations have what devices, which use electromagnetic induction to increase or decrease the voltage of the current?
Options:
A. transformers
B. transistors
C. generators
D. tubes | A |
Question: By what process does oxygen enter the pores of flatworms?
Options:
A. permeation
B. filtration
C. absorption
D. diffusion | D |
Question: The iconic gray mantle of the human brain, which appears to make up most of the mass of the brain, is called?
Options:
A. lobes
B. cerebrum
C. brain stem
D. thrombus | B |
Question: What kind of rocks form as an existing rock is altered by high temperature or pressure?
Options:
A. basaltic
B. sedimentary
C. metamorphic
D. igneous | C |
Question: What kind of water are cattails adapted for with narrow, strap-like leaves?
Options:
A. saline water
B. moving water
C. stagnant water
D. turbulent water | B |
Question: What is the most abundant living thing on earth that can be found in almost any environment?
Options:
A. pathogens
B. bacteria
C. viruses
D. pests | B |
Question: Oxidation does not necessarily require heating. which is the common and natural method of oxidation?
Options:
A. fermentation
B. boiling
C. ageing
D. rusting | D |
Question: Toward the late stages of pregnancy, a drop in progesterone and stretching forces from the fetus lead to increasing uterine irritability and prompt labor. contractions serve to dilate the cervix and expel this?
Options:
A. tissues
B. blood
C. newborn
D. uteris | C |
Question: Light bends when it passes in from what to what?
Options:
A. product to water
B. air to water
C. water to air
D. air to ground | B |
Question: Photosynthesis uses solar energy, carbon dioxide, and water to produce energy-storing carbohydrates.what is produced as a waste product?
Options:
A. sulfur
B. methane
C. calcium
D. oxygen | D |
Question: What is the basic unit of computer memory?
Options:
A. Teraybte
B. byte
C. Bit
D. Megabyte | B |
Question: What is the first part of the large intestine, where wastes enter from the small intestine?
Options:
A. stomach
B. esophagus
C. the cecum
D. bowel | C |
Question: Burning fossil fuels produces air pollution and what?
Options:
A. carbon dioxide
B. oxygen
C. acid rain
D. liquid dioxide | A |
Question: Monosaccharides, particularly glucose, are major nutrients for what?
Options:
A. cells
B. proteins
C. lipids
D. photosynthesis | A |
Question: Covalent solids are formed by networks or chains of atoms or molecules held together by what?
Options:
A. bail bonds
B. ionic bonds
C. gravitational bonds
D. covalent bonds | D |
Question: In response to high blood osmolarity, which can occur during dehydration or following a very salty meal, the osmoreceptors signal the posterior pituitary to release this?
Options:
A. oxygen
B. salt
C. adrenaline
D. antidiuretic hormone (adh) | D |
Question: The grasp reflex in humans is an example of what kind of behavior?
Options:
A. inclination
B. trait
C. innate
D. habit | C |
Question: Antibiotics can cure most infections that are caused by what?
Options:
A. bacterium
B. algae
C. bile
D. bacteria | D |
Question: Hydrocarbons are made up of carbon and what else?
Options:
A. nitrogen
B. silicon
C. helium
D. hydrogen | D |
Question: Archaeal cell walls contain a variety of polysaccharides and proteins but lack what?
Options:
A. S-layers
B. peptidoglycan
C. DNA
D. RNA | B |
Question: What are lipids' function in relation to nerves?
Options:
A. protection
B. conservation
C. reproduction
D. transportation | A |
Question: What's the name for the point reached at a ph of 7?
Options:
A. acidic point
B. analogous point
C. constriction point
D. equivalence point | D |
Question: Crystallization separates mixtures based on differences in what, which usually increases with temperature?
Options:
A. solubility
B. viscosity
C. humidity
D. density | A |
Question: Pure substances have a constant composition and can only be changed through what?
Options:
A. heating
B. dissolution
C. liquid reactions
D. chemical reactions | D |
Question: Which water from the equator mixes with cold water from the poles?
Options:
A. warm
B. spring water
C. ice water
D. hot | A |
Question: In order to determine its molecular formula, it is necessary to know what about the compound?
Options:
A. polar mass
B. protons mass
C. lipid mass
D. molar mass | D |
Question: What is the term for much bigger evolutionary changes that result in new species?
Options:
A. macroevolution
B. recalibration
C. breaking away
D. regression | A |
Question: What are the effects of light on plant morphology called?
Options:
A. photomorphogenesis
B. Microsporogenesis
C. electrogenesis
D. Megasporogenesis | A |
Question: In a magnet, what are the regions called that are the strongest?
Options:
A. negatives
B. plates
C. poles
D. positives | C |
Question: What kind of muscle cells undergo twitch-type contractions with long refractory periods followed by brief relaxation periods, allowing the heart to fill with blood for the next cycle?
Options:
A. skeletal muscle
B. smooth muscle
C. nervous muscle
D. cardiac muscle | D |
Question: What is a factor in determining weight but not mass?
Options:
A. gravity
B. material
C. location
D. function | C |
Question: What occurs when two nonpolar liquids are mixed?
Options:
A. sediment - nonpolar interactions
B. refracted - nonpolar interactions
C. polar-nonpolar interactions
D. nonpolar-nonpolar interactions | D |
Question: Although much of the heart's basic structure is complete by the end of the fifth week, what fetal structures remain until birth or shortly after?
Options:
A. umbilical arteries
B. blood shunts
C. heart shunts
D. renal arteries | B |
Question: Because sound waves must move through a medium, there are no sound waves in a what?
Options:
A. solid
B. gas
C. vacuum
D. liquid | C |
Question: Bicarbonate is the second most abundant anion in the blood. its principal function is to maintain your body’s acid-base balance by being part of these?
Options:
A. buffer systems
B. compound systems
C. curb systems
D. stream systems | A |
Question: What process involves two cell divisions and produces four haploid cells?
Options:
A. meiosis
B. mutations
C. Mitosis
D. Klerokinesis | A |
Question: What happens to a chain of amino acids after it reaches a stop codon?
Options:
A. released from the ribosome
B. metabolism begins
C. digestion stops
D. stays in ribosome | A |
Question: How many electrons can be accommodated in the first electron shell's orbital?
Options:
A. none
B. 2
C. 3
D. 1 | B |
Question: Species distributions are a consequence of both ecological and evolutionary what?
Options:
A. particles
B. isolation
C. interactions
D. fluctuations | C |
Question: What is the name of the mineral that contains calcium, carbon and oxygen?
Options:
A. granite
B. calcite
C. quartz
D. cobalt | B |
Question: What medical emergency occurs when a blood clot blocks blood flow to part of the brain, causing death of brain cells?
Options:
A. cardiac arrest
B. stroke
C. heart murmur
D. epileptic seizure | B |
Question: What are the strongest magnets made?
Options:
A. electromagnets
B. polarized magnets
C. permanent magnets
D. natural magnets | A |
Question: What vessels supply blood to the myocardium and other components of the heart?
Options:
A. coronary arteries
B. rapid arteries
C. specialized arteries
D. surface arteries | A |
Question: An endocrine disease usually involves the secretion of too much or not enough of what?
Options:
A. hormone
B. protein
C. metabolism
D. neurotransmitter | A |
Question: What is it called when a gene at one location (locus) alters the phenotypic expression of a gene at another locus?
Options:
A. epigenesis
B. epistasis
C. spontaneous mutation
D. exogenous | B |
Question: Called the powerhouses of the cell, what organelles are the site of cellular energy production?
Options:
A. mitosis
B. nucleus
C. cell wall
D. mitochondria | D |
Question: What is the name of the major sex hormone in females?
Options:
A. testosterone
B. estrogen
C. insulin
D. glucose | B |
Question: What is the smallest unit of a living thing?
Options:
A. cell
B. electron
C. organ
D. proton | A |
Question: What kind of metals have perplexing patterns of electron distribution that don’t always follow the electron filling rules?
Options:
A. variating
B. transition
C. solution
D. transformation | B |
Question: The fact that water in a reservoir is elevated above the ground means that it has what kind of energy?
Options:
A. kinetic
B. nuclear
C. excessive
D. potential | D |
Question: Rich in protein and nutrients, what abundant group of organisms is being touted as an important human dietary source?
Options:
A. fruits
B. primates
C. fungus
D. insects | D |
Question: In contrast to metals, electrical insulators are materials that conduct electricity poorly because their valence bands are what?
Options:
A. full
B. empty
C. large
D. half-full | A |
Question: What model postulates that electrons orbit the nucleus at fixed energy levels?
Options:
A. coreolis
B. atomic model
C. Newton's model
D. bohr | D |
Question: In the case of the wheelbarrow, the output force or load is between the pivot and the what?
Options:
A. Driving Force
B. input force
C. density force
D. velocity force | B |
Question: What type of electrons are attracted to the positive nucleus?
Options:
A. particular electrons
B. passive electrons
C. negative electrons
D. turbulent electrons | C |
Question: Present-day plants that have a complex vascular tissue system are called what kind of plants?
Options:
A. cirulatory plants
B. vasculated plants
C. pinworm plants
D. vasuluar plants | D |
Question: What tool, used to locate underwater objects, utilizes ultrasound in a way that is similar to echolocation?
Options:
A. radar
B. GPS
C. scanning
D. sonar | D |
Question: What kind of competition often leads to extinction because the species that is less well adapted gets fewer of the resources that both species need?
Options:
A. intraspecific competition
B. parasitism
C. interspecific competition
D. mutualism | C |
Question: A nephrologist studies and deals with diseases of what organ?
Options:
A. kidneys
B. stomach
C. brains
D. lungs | A |
Question: Where is the potential energy of a river the highest at?
Options:
A. the middle
B. the bank
C. the ocean
D. the source | D |
Question: What are the most numerous and diverse biochemical compounds?
Options:
A. acids
B. proteins
C. lipids
D. Carbohydrates | B |
Question: Where are most plants firmly rooted?
Options:
A. rock
B. soil
C. mineral
D. grass | B |
Question: What type of rain dissolves limestone and marble?
Options:
A. natural
B. sulfur
C. carbon
D. acid | D |
Question: What are materials that have a low resistance to electrical current called?
Options:
A. electrical conductors
B. electrons
C. fast conductors
D. resistors | A |
Question: What mammalian feature serves functions such as filtration and keeping the body warm?
Options:
A. sensory organs
B. shivering
C. hair
D. sweat | C |
Question: Higher pressures increase the solubility of what?
Options:
A. fuels
B. bases
C. molecules
D. gases | D |
Question: What is an important level of organization in ecology and the unit of microevolution?
Options:
A. macro
B. system
C. organization
D. population | D |
Question: When hot water gently rises to the surface, it creates a what?
Options:
A. steam cloud
B. hot spring
C. fissure
D. volcano | B |
Question: What is the final stage of aerobic respiration, when energy from the krebs cycle is transferred to atp?
Options:
A. acetyl-CoA
B. glycolysis
C. cytoplasm transport
D. electron transport | D |
Question: What state of matter has a definite volume, but not a definite shape?
Options:
A. gas
B. liquid
C. solid
D. mixture | B |
Question: Blood leaves the left ventricle via the what?
Options:
A. aorta
B. atrium
C. dorsal chamber
D. capillary | A |
Question: What type of animal can be found on every continent except antarctica?
Options:
A. reptiles
B. mammals
C. insects
D. amphibians | A |
Question: Though viruses are not considered living, they share two important traits with living organisms: they have genetic material and they can undergo what process?
Options:
A. sexual reproduction
B. generation
C. learning
D. evolution | D |
Question: What is our sun's next stage called?
Options:
A. white giant
B. blue giant
C. red giant
D. super nova | C |
Question: What type of molecule is carbon dioxide (co2)?
Options:
A. filter
B. linear
C. non-linear
D. planar | B |
Question: Trimethylamine is one of the substances responsible for the what of spoiled fish?
Options:
A. decay
B. feel
C. appearance
D. smell | D |
Question: Making ultrasonic clicks is a clever way that some moths respond to attacks by what flying mammals?
Options:
A. bats
B. locusts
C. bees
D. birds | A |
Question: What do plants respond to in their environment?
Options:
A. changes in sunlight or water
B. changes in metal or water
C. changes in temperature or water
D. changes in sunlight or pressure | A |
Question: Bone marrow is found inside many bones and produces what?
Options:
A. lymphocytes
B. apoptosis
C. tumors
D. sugar | A |
Question: One species benefits while the host species is harmed in what type of relationship?
Options:
A. fungal
B. amensalism
C. parasitism
D. mutualism | C |
Question: What is a compound in which all of the atoms are connected to one another by covalent bonds?
Options:
A. covalent mixture
B. compound metal
C. covalent bond element
D. covalent network solid | D |
Question: What kind of lakes form when volcanic eruptions create massive holes that fill with water?
Options:
A. lava lakes
B. eruption bowls
C. crater lakes
D. volcanic cavities | C |
Question: The ovaries produce estradiol and progesterone, which cause secondary sex characteristics and prepare the body for?
Options:
A. breathing
B. movement
C. childbirth
D. adulthood | C |
Question: Ions move through what to maintain electrical neutrality in the cell?
Options:
A. the plasma
B. the substrate
C. the protein
D. the membrane | D |
Question: What are the messenger molecules of the endocrine system?
Options:
A. hormones
B. acids
C. enzymes
D. neurons | A |
Question: What do you call any substance that opposes coagulation?
Options:
A. antibodies
B. anticoagulant
C. dissolvent
D. toxin | B |
Question: What controls every aspect of plant growth and development to some degree?
Options:
A. chlorophyll
B. pesticides
C. acids
D. hormones | D |
Question: Making a specific prediction based on a general principle is known as what type of reasoning?
Options:
A. common sense reasoning
B. logical reasoning
C. validating reasoning
D. deductive reasoning | D |
Question: Ripe fruits are usually red, orange, yellow, or what?
Options:
A. purple
B. blue
C. white
D. black | A |
Question: What are the lines of force in the electric field around a charged particle called?
Options:
A. field lines
B. terrain lines
C. ionic zone
D. voltage lines | A |
Question: An electric transformer connects two circuits with an iron core that becomes what?
Options:
A. inductive
B. electromagnet
C. radioactive
D. actuator | B |
Question: What structure connects the pharynx to the trachea?
Options:
A. aorta
B. thyroid
C. sternum
D. larynx | D |
Question: The resultant solution will contain the same amount of solute but a greater amount of what?
Options:
A. calcium
B. liquid
C. solvent
D. pigment | C |
Question: The thin scale-like or flat shape of what cells fits their primary function, to provide a smooth and protective surface?
Options:
A. basic epithelium
B. simple epithelium
C. technique epithelium
D. kind epithelium | B |
Question: During what phase of breathing does the pressure inside the lungs drops to below atmospheric pressure?
Options:
A. exhalation
B. ingestion
C. inhalation
D. conduction | C |
Question: What type of climates is malaria commonly found in?
Options:
A. tropical and permafrost
B. tropic and arctic
C. tropical and subtropical
D. arid and arctic | C |
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