question stringlengths 68 502 | answer stringclasses 4
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|---|---|
Question: What is the first step in protein synthesis?
Options:
A. reproduction
B. differentiation
C. mutation
D. transcription | D |
Question: What branch of biology focuses on heredity?
Options:
A. genetics
B. ontology
C. Epidemiology
D. semiotics | A |
Question: Stars are born in clouds, and they form and grow dense due to what force?
Options:
A. gravity
B. Big Bang theory
C. kinetic energy
D. coreolis effect | A |
Question: What has atoms with unstable nuclei?
Options:
A. microwaves
B. radionuclide
C. hydrocarbon
D. radioisotope | D |
Question: What is the tissue beneath a mollusks' shell called?
Options:
A. skin
B. mantle
C. cartilage
D. mucous | B |
Question: What is formed from an alcohol that loses water?
Options:
A. Bonds
B. amines
C. alkenes
D. alcohols | C |
Question: What is the division of the body into multiple parts called?
Options:
A. transverse
B. organ-level organization
C. segmentation
D. compression | C |
Question: What reproductive method has two parents involved?
Options:
A. pollination
B. sexually
C. budding
D. mitosis | B |
Question: In many cases, the alkali metal amide salt (mnh2) is not very soluble in liquid ammonia and does what?
Options:
A. isolates
B. precipitates
C. evaporates
D. settles | B |
Question: An example of beta decay is the emission of an electron by a carbon-14 what?
Options:
A. nucleus
B. molecules
C. protons
D. ion | A |
Question: Which theory describes the distribution of electrons in molecules in much the same way that the distribution of electrons in atoms is described using atomic orbitals?
Options:
A. molecular orbital theory
B. atomic orbital theory
C. atomic distribution theory
D. molecular distribution theory | A |
Question: Oversecretion of insulin can cause what?
Options:
A. hypoxia
B. inflammation
C. hyperglycemia
D. hypoglycemia | D |
Question: The first few species to colonize a disturbed area are called what?
Options:
A. pioneer species
B. colonization species
C. producer species
D. original species | A |
Question: What are the two loops of blood flow in the cardiovascular system?
Options:
A. anabolic and metabolic
B. aerobic and anaerobic
C. pulmonary and systemic
D. systolic and diastolic | C |
Question: What is the name of a group of hereditary diseases that affect the body's ability to control blood clotting?
Options:
A. hypertension
B. arithmya
C. hemophilia
D. anemia | C |
Question: Protists which use their tails to eat are called what?
Options:
A. cycle - feeders
B. flagellators
C. swimmers
D. filter-feeders | D |
Question: What term is used to describe foods containing active cultures of beneficial bacteria?
Options:
A. carotenoids
B. antibiotics
C. sembiotic
D. probiotic | D |
Question: What helps control the muscles and maintain balance?
Options:
A. circulatory system
B. muscular system
C. nervous system
D. lymphatic system | C |
Question: What unit of power is equal to 1 joule of energy per second?
Options:
A. byte
B. watt
C. volt
D. hertz | B |
Question: What is just below the cerebrum and coordinates body movements?
Options:
A. hypothalamus
B. spinal cord
C. bloodstream
D. cerebellum | D |
Question: What part of blood releases clotting factors?
Options:
A. hemoglobin
B. platelets
C. erythrocytes
D. white blood cells | B |
Question: Adding carbon to iron makes what type of metal?
Options:
A. ions
B. titanium
C. steel
D. plastic | C |
Question: Which structure includes sugar-phosphate "backbones", composed of alternating phosphate groups and deoxyribose sugars, and nitrogenous bases?
Options:
A. dna double helix
B. molecule double helix
C. mulecular triplex
D. dna triple helix | A |
Question: In a hydrogen replacement reaction, the hydrogen in the acid is replaced by what?
Options:
A. water
B. an active metal
C. oxygen
D. gas | B |
Question: Mitosis and meiosis are both forms of division of the nucleus in these?
Options:
A. endogenous cells
B. reproduction cells
C. converts cells
D. eukaryotic cells | D |
Question: What is the last step in a scientific investigation?
Options:
A. retesting findings
B. verifying findings
C. documenting findings
D. communicating findings | D |
Question: Where is multiple fission more often observed?
Options:
A. among vertebrates
B. among protists
C. among animals
D. among multi-celled organisms | B |
Question: What type of invertebrates where the earliest animals?
Options:
A. aquatic invertebrates
B. annelids
C. arachnids
D. cnidaria | A |
Question: Unlike wood and glass, steel is an example of a material that responds to what force?
Options:
A. magnetic
B. kinetic
C. thermal
D. electromagnetic | A |
Question: Carefully controlling the speed of a fission reaction produces what kind of energy?
Options:
A. chemical
B. thermal
C. nuclear
D. atomic | C |
Question: When two electric contacts come together it completes a what?
Options:
A. atom
B. charge
C. cricuit
D. breaker | C |
Question: Pure nonpolar covalent bonds exist only between what?
Options:
A. two producing atoms
B. two identical atoms
C. three altered atoms
D. two altered atoms | B |
Question: The decay rate is measured in a unit called the what?
Options:
A. decay rate
B. exponential decay
C. radioactive decay
D. half-life | D |
Question: What is a condition in which a material called plaque builds up inside arteries?
Options:
A. fibrosis
B. atherosclerosis
C. arthritis
D. scoliosis | B |
Question: Quarks in the middle energy family are found in cosmic rays and are produced in what?
Options:
A. particle accelerators
B. particle splicers
C. cosmic accelerators
D. particle processors | A |
Question: What celestial body in the solar system makes up most of its total mass?
Options:
A. Andromeda
B. Jupiter
C. earth
D. sun | D |
Question: Free ear lobes, widow's peak and a dimpled chin are examples of what kind of traits in humans?
Options:
A. spontaneous mutations
B. genetic disorders
C. adaptations
D. mendelian | D |
Question: Producing light without heat is called what?
Options:
A. luminescence
B. thermoluminescence
C. bioluminescence
D. osmosis | A |
Question: What natural part of the water cycle can cause damage and death?
Options:
A. evaporation
B. expiration
C. clouds
D. floods | D |
Question: How many large eggs are generated during oogenesis?
Options:
A. 4
B. 2
C. one
D. 3 | C |
Question: Gaseous nitrogen is converted into forms that can be used by plants during a process called what?
Options:
A. oxygen fixation
B. nitrogen fixation
C. plant fixation
D. dioxide fixation | B |
Question: What is an example of a disease that affects the blood?
Options:
A. rickets
B. anemia
C. scoliosis
D. tuberculosis | B |
Question: Name the term used to described prokaryotes that require oxygen.
Options:
A. hydrophylic
B. mouth breathers
C. aerobic
D. anaerobic | C |
Question: Many ionic compounds with relatively large cations and a 1:1 cation:anion ratio have this structure, which is called the what?
Options:
A. boron chloride structure
B. cesium chloride structure
C. analogous structure
D. hydrocarbon structure | B |
Question: What property increases as an object's mass increases, making a full box harder to push than an empty one?
Options:
A. inertia
B. weight
C. gravity
D. magnetism | A |
Question: What will happen to sea levels due to increased global temperatures?
Options:
A. rise
B. Drop
C. surge
D. reverse | A |
Question: Sea-lilies, sea cucumbers and sea stars fall into what class of organism?
Options:
A. echinoderms
B. mollusks
C. snakes
D. crabs | A |
Question: What kind of rock forms when material such as gravel, sand, silt or clay is compacted and cemented together?
Options:
A. ingenious
B. craters
C. limestone
D. sedimentary | D |
Question: In science, we need to make observations on various phenomena to form and test what?
Options:
A. assumptions
B. theories
C. hypotheses
D. variations | C |
Question: What do industries use water to generate?
Options:
A. electricity
B. light
C. refrigeration
D. pollution | A |
Question: Mammals are synapsids, meaning they have a single opening in what structure?
Options:
A. heart
B. hip
C. skull
D. spine | C |
Question: What are the properties of solutions called that depend only on the concentration of dissolved particles and not on their identity?
Options:
A. platyhelminth properties
B. platyhelminth properties
C. colligative properties
D. platyhelminth properties | C |
Question: Liquids that mix with each other in all proportions are said to be miscible, maning they have infinite mutual what?
Options:
A. salinity
B. solubility
C. insolubility
D. viscosity | B |
Question: Which law relates the pressure, volume, and temperature of a gas?
Options:
A. combines gas law
B. shifts gas law
C. newton's law
D. directions gas law | A |
Question: Heat and light are forms of what, which refers to the ability to do work?
Options:
A. fuel
B. waves
C. energy
D. food | C |
Question: Volcano chains form as an oceanic plate moves over what?
Options:
A. melt spot
B. Water spot
C. dust spot
D. hot spot | D |
Question: What type of planet is jupiter?
Options:
A. a phantom
B. a gas giant
C. a red dwarf
D. a noble gas | B |
Question: What does antifreeze do to the freezing temperature of the water in car radiators?
Options:
A. raises it
B. foresees it
C. lowers it
D. keeps it constant | C |
Question: What process typically occurs to metal exposed to outside elements?
Options:
A. shrinkage
B. explosion
C. extraction
D. corrosion | D |
Question: The innermost layer of the sun is known as what?
Options:
A. photosphere
B. core
C. convective zone
D. surface | B |
Question: Motor neurons and sensory neurons are part of what nervous system?
Options:
A. central
B. peripheral
C. autonomic
D. sensory-somatic | D |
Question: What type of science is the study of matter and energy and includes chemistry and physics?
Options:
A. biology
B. physical science
C. Earth science
D. genetics | B |
Question: When plants lose their leaves in the fall, what chemical is produced less to cause the change?
Options:
A. carbonate
B. oxygen
C. chlorophyll
D. pheromes | C |
Question: In which kind of animals does parthenogenesis occur?
Options:
A. invertebrates
B. mammals
C. species
D. tissues | A |
Question: What is the name of the temporary organ that begins to form from the trophoblast layer of cells shortly after implantation?
Options:
A. uterus
B. appendix
C. placenta
D. embryo | C |
Question: What term is used to describe anything that takes up space and has mass?
Options:
A. matter
B. opacity
C. weight
D. size | A |
Question: What is the organ that senses sound?
Options:
A. eye
B. skin
C. nose
D. ear | D |
Question: What can be described in terms of size, density, and distribution?
Options:
A. populations
B. biomes
C. habitats
D. dimensions | A |
Question: What is the term for the simplest form of matter that has a unique set of properties?
Options:
A. an atom
B. an electron
C. an element
D. a neutron | C |
Question: What causes light to refract?
Options:
A. bending
B. speeding up
C. slowing down
D. blinking | C |
Question: Capacitors can be used to filter out low frequencies. for example, a capacitor in series with a sound reproduction system rids it of the 60 hz what?
Options:
A. vibration
B. white noise
C. echo
D. hum | D |
Question: What is made up of nerve cells that sense stimuli and transmit signals?
Options:
A. dependent tissue
B. nervous tissue
C. blood tissue
D. muscle tissues | B |
Question: Some animals prepare for the long winter by going into what?
Options:
A. pollination
B. fermentation
C. hibernation
D. suspended animation | C |
Question: It may seem as though burning destroys matter, but the same amount of what, still exists after a campfire as before?
Options:
A. concentrations
B. mass
C. termperature
D. energy | B |
Question: Different isotopes of an element have different mass numbers because they have different numbers of what?
Options:
A. nuclei
B. neutrons
C. electrons
D. protons | B |
Question: Density is defined as the mass of an object divided by its what?
Options:
A. growth
B. volume
C. size
D. liquid | B |
Question: What element is responsible for one-half of the osmotic pressure gradient that exists between the interior of cells and their surrounding environment?
Options:
A. sodium
B. nitrogen
C. calcium
D. potassium | A |
Question: What types of orbits do comets usually have?
Options:
A. spectral
B. convex
C. vertical
D. elliptical | D |
Question: What describes how close an estimate is to a known standard?
Options:
A. diversity
B. accuracy
C. precision
D. frequency | B |
Question: Canoe paddles, nutcracker, and hammer are examples of what type of simple machine?
Options:
A. pivot
B. lock
C. lever
D. handle | C |
Question: What do most species of monkeys have that no apes or humans do?
Options:
A. five fingers
B. large brain
C. tail
D. fur | C |
Question: What are joints in which the bones are connected by a band of connective tissue?
Options:
A. cartilaginous
B. plane
C. saddle
D. syndesmoses | D |
Question: What are the four stages of food processing?
Options:
A. ingestion, digestion, absorption, and reproduction
B. ingestion, digestion, elimination and extinction
C. ingestion, reproduction, absorption, and elimination
D. ingestion, digestion, absorption, and elimination | D |
Question: What are different forms of the same gene?
Options:
A. alleles
B. genomes
C. peptides
D. nuerons | A |
Question: What is the wheeled robot developed by nasa to explore the surface of mars?
Options:
A. mars driver
B. mars rover
C. mars SUV
D. mars robot | B |
Question: What effect does taking anabolic steroids have on testosterone production?
Options:
A. reduces it
B. eliminates it
C. does nothing
D. increases it | A |
Question: Living in a large colony requires good communication. ants communicate with chemicals called what?
Options:
A. pheromones
B. alkalides
C. hormones
D. peptides | A |
Question: What complex carbohydrates are the polymers of glucose?
Options:
A. fats
B. starches
C. fruits
D. sugars | B |
Question: What is the term for the shallow space above the zygomatic arch in a skull?
Options:
A. angular fossa
B. distinct fossa
C. Medium Fossa
D. temporal fossa | D |
Question: What is the inner layer of skin called?
Options:
A. the dermis
B. connective layer
C. the epidermis
D. hypodermis | A |
Question: Many european and asiatic elms are less susceptible to dutch elm disease than which elms?
Options:
A. african
B. american
C. rican
D. caribbean | B |
Question: What does a thermometer measure?
Options:
A. oxygen
B. size
C. temperature
D. precipitation | C |
Question: What are plant-like protists called?
Options:
A. algae
B. sponge
C. spores
D. fungi | A |
Question: What is a series of processes that remove unwanted substances from water called?
Options:
A. water cleaning
B. water dilution
C. water filtration
D. water treatment | D |
Question: Original atoms are called what type of isotopes?
Options:
A. component
B. offspring
C. product
D. parent | D |
Question: What do you call an area covered with water, or possessing very soggy soil, all or part of the year?
Options:
A. wetland
B. island
C. stream
D. peninsula | A |
Question: In which continent are meerkats most likely to be found?
Options:
A. Australia
B. africa
C. South America
D. North America | B |
Question: What is the name of the thin layer that acts as a boundary between the stratosphere and the mesosphere?
Options:
A. spirogyra
B. ozone layer
C. spicule
D. stratopause | D |
Question: What is the process of removing wastes and excess water from the body?
Options:
A. ingestion
B. diffusion
C. excretion
D. depletion | C |
Question: Which measure shows how individuals in a population are distributed, or spread throughout their area?
Options:
A. proportional distribution
B. population phase
C. geographical distribution
D. population distribution | D |
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