question stringlengths 68 502 | answer stringclasses 4
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|---|---|
Question: Who controls prey population?
Options:
A. bees
B. ecosystems
C. parasites
D. predators | D |
Question: In which organs does gas exchange take place between blood and air?
Options:
A. liver and spleen
B. lungs
C. kidneys
D. esophagus and larynx | B |
Question: The frequency of sound waves is measured in what unit?
Options:
A. hertz
B. decibel
C. watt
D. rads | A |
Question: Does an increase in temperature speed up or slow down reactions?
Options:
A. end reaction
B. slow down
C. speed up
D. remain the same | C |
Question: An obstacle or opening that is shorter than the wavelength causes greater diffraction of what?
Options:
A. ranges
B. particles
C. waves
D. tides | C |
Question: Corals build hard exoskeletons that grow to become coral what?
Options:
A. crystals
B. reefs
C. layers
D. beds | B |
Question: What is the name of the procedure where an unknown compound can be analyzed in the laboratory in order to determine the percentages of each element contained within it?
Options:
A. chemical analysis
B. gaseous analysis
C. elemental analysis
D. electrical analysis | C |
Question: While spermatogenesis produces four haploid sperm cells, oogenesis produces one mature what?
Options:
A. datum
B. ovum
C. egg
D. semen | B |
Question: What are groups of tens to hundreds of thousands of stars held tightly together by gravity called?
Options:
A. galaxy
B. elliptical clusters
C. elongated clusters
D. globular clusters | D |
Question: What is the general name for the homogeneous mixture that is formed when a solute dissolves in a solvent?
Options:
A. Dissolvant
B. Combination
C. solution
D. Reaction | C |
Question: Life itself could not exist without what energy, which plays a vital role in photosynthesis?
Options:
A. spin energy
B. light energy
C. magnetic energy
D. time energy | B |
Question: What does power imply is happening to energy?
Options:
A. being created
B. being destroyed
C. is expanding
D. being transferred | D |
Question: Because the masses of subatomic particles are so small, a new unit, called what, was defined?
Options:
A. particle mass unit
B. nuclear mass unit
C. atomic volume unit
D. atomic mass unit | D |
Question: Which organ breaks down amino acids and toxins that are in the blood?
Options:
A. small intestine
B. skin
C. kidney
D. liver | D |
Question: Which compound has positively and negatively charged ends?
Options:
A. tumultuous compound
B. real compound
C. polar compound
D. non-polar compound | C |
Question: What system of the body is responsible for producing hormones?
Options:
A. homeostasis system
B. regulatory system
C. nervous system
D. endocrine system | D |
Question: What happens to a substance in a liquid state when the temperate is lowed?
Options:
A. it solidifies
B. it evaporates
C. it dissipates
D. it melts | A |
Question: Sublimation and deposition involve direct transitions between solid and gas without going through which state?
Options:
A. homeostasis
B. carbon
C. liquid
D. chemical | C |
Question: What is the process by which plants and animals increase in size?
Options:
A. splicing
B. growth
C. grafting
D. reproduction | B |
Question: Which glands sit atop the kidneys and are composed of an outer cortex and an inner medulla, all surrounded by a connective tissue capsule?
Options:
A. gonads
B. thyroid glands
C. salivary
D. adrenal | D |
Question: What is it that surrounds cells and serve to keep the insides separated from the outsides?
Options:
A. abundant membranes
B. similar membranes
C. biological membranes
D. inner membranes | C |
Question: What is the gland in the chest behind the breast bone that stores some types of lymphocytes while they mature?
Options:
A. thymus
B. lumbar
C. Montgomery
D. pineal | A |
Question: What promotes cell division and are necessary for growing plants in tissue culture?
Options:
A. polyamines
B. cytokinins
C. mitochondria
D. auxins | B |
Question: What map shows the locations of several genes on the x chromosome?
Options:
A. The genomic map
B. the linkage map
C. The allelic map
D. the component map | B |
Question: Although they are as different as deserts and wetlands, all of these ecosystem units have populations of interacting species?
Options:
A. corals
B. continents
C. biomes
D. zoos | C |
Question: What is the name of the bone that forms the forehead?
Options:
A. high bone
B. frontal bone
C. forebone
D. upper bone | B |
Question: What is the name for a molecule with two atoms?
Options:
A. diatomic
B. hydrostatic
C. covalent
D. ionized | A |
Question: What type of motor is used in most household devices with moving parts?
Options:
A. cooling motors
B. vacuum motors
C. thermal motors
D. electric motors | D |
Question: What process determines the dna sequence of an entire genome?
Options:
A. chromosomal counting
B. whole-genome sequencing
C. dna replication
D. genetic factorization | B |
Question: What disease can too little calcium cause?
Options:
A. osteoporosis
B. anemia
C. arthritis
D. psoriasis | A |
Question: In a scientific investigation, what do you call a direct, physical observation of something or a process?
Options:
A. reason
B. sighting
C. evidence
D. declaration | C |
Question: The volume of blood each ventricle pumps per minute is called what?
Options:
A. cardiac output
B. brain output
C. trauma output
D. blood output | A |
Question: How does consuming enterobactin help our body?
Options:
A. eliminates excess fat
B. eliminates excess oxygen
C. eliminates excess iron
D. builds excess iron | C |
Question: Green cyanobacteria on a lake produce food through what process?
Options:
A. spermatogenesis
B. glycolysis
C. reverse transferase
D. photosynthesis | D |
Question: Because the human body is about 70% water by mass, and liquid water has high specific heat, a great deal of what is required to change its temperature?
Options:
A. power
B. digestion
C. work
D. energy | D |
Question: The process of making a polymer is called what?
Options:
A. memorization
B. polymerization
C. fermentation
D. reaction | B |
Question: Behind a ship, what is the giant rectangular bucket that is dragged along from the behind called?
Options:
A. wig
B. dredge
C. trousers
D. prop | B |
Question: What is it called when multiple faults are located in close proximity to one another?
Options:
A. crystal zone
B. fog zone
C. solid zone
D. fault zone | D |
Question: Binding of acetylcholine to receptors on the muscle fiber leads to a?
Options:
A. excitation
B. conduction
C. repolarization
D. depolarization | D |
Question: Most tunicates live a sessile existence in shallow ocean waters and are suspension feeders. the primary foods of tunicates are plankton and this?
Options:
A. debris
B. detritus
C. bacteria
D. crustaceans | B |
Question: Ginkgo trees are gymnosperms with broad?
Options:
A. trunks
B. roots
C. fruits
D. leaves | D |
Question: Recrystallization is a process that can remove what, which result when compounds are synthesized?
Options:
A. minerals
B. chemicals
C. contaminants
D. substances | C |
Question: What is one of the most common biochemical compounds on earth and is found in all plants?
Options:
A. sulfur
B. cellulose
C. hydrogen
D. carbon dioxide | B |
Question: What man-made structures orbit all of the inner planets as well as jupiter and saturn?
Options:
A. comets
B. satellites
C. moons
D. space shuttles | B |
Question: What basic structures take in nutrients from the soil and help the plant survive?
Options:
A. tissues
B. stems
C. leaves
D. roots | D |
Question: What does ubiquitin indicate about a protein's lifespan?
Options:
A. completion
B. reaction ratio
C. initiation
D. transaction | A |
Question: Which vertebrae carry the greatest amount of body weight and are thus characterized by the large size and thickness of the vertebral body?
Options:
A. artery vertebrae
B. invertebrae
C. thickness vertebrae
D. lumbar vertebrae | D |
Question: Because of it's repeating pattern, what is mendeleev's table of the elements called?
Options:
A. serial chart
B. cycles table
C. periodic table
D. phases table | C |
Question: Where does an electron move to after it absorbs energy?
Options:
A. a shell farther from the nucleus
B. another electron
C. atomic orbit
D. a shell closer to the nucleus | A |
Question: What is needed by all known forms of life?
Options:
A. air
B. nitrogen
C. water
D. warmth | C |
Question: What lengths are positive for converging lens and negative for diverging lens?
Options:
A. differential lengths
B. focal lengths
C. light lengths
D. wavelengths | B |
Question: Where does most geological activity takes place?
Options:
A. at ocean bottoms
B. at plate boundaries
C. in mountain ranges
D. in coastal areas | B |
Question: Birds have light-weight bones that are filled with what?
Options:
A. water
B. air
C. proteins
D. blood | B |
Question: Why does a large log burn relatively slowly compared to the same mass of wood in the form of small twigs?
Options:
A. smaller blade area
B. larger surface area
C. larger surface area
D. smaller surface area | D |
Question: What is usually necessary to develop cancer?
Options:
A. novel genes mutations
B. crucial genes mutations
C. massive genes mutations
D. multiple genes mutations | D |
Question: Consumers are organisms that depend on other organisms for what?
Options:
A. food
B. shelter
C. knowledge
D. reproduction | A |
Question: Wine, air, and gunpowder are all examples of what kind of common mixtures?
Options:
A. heterogeneous
B. contiguous
C. homogeneous
D. combined | C |
Question: What is the term for anything that can cause cancer?
Options:
A. contaminate
B. contamination
C. carcinogen
D. chemical | C |
Question: What system of organs delivers blood to all cells of the body?
Options:
A. gastrointestinal
B. integumentary
C. cardiovascular
D. respiratory | C |
Question: What part of a chromosome exists in different states of condensation at different times?
Options:
A. centromeres
B. the chromatin
C. pellicle
D. chromonema | B |
Question: What do the ears have to be protected from in order to avoid hearing loss?
Options:
A. Cold weather
B. loud sounds
C. Water
D. Storms | B |
Question: What is the first and longest phase of mitosis known as?
Options:
A. telophase
B. anaphase
C. prophase
D. metaphase | C |
Question: Plants reduce nitrate back to what before incorporating the nitrogen into organic compounds:?
Options:
A. ammonium
B. phosphate
C. phosphate
D. sulfide | A |
Question: Growth factors and certain plant and animal hormones serve as molecular messengers that initiate pathways of what?
Options:
A. cell growth
B. cellular decay
C. cell division
D. cell fusion | C |
Question: When a wave travels down a string, the string vibrates up and down at right angles to the wave's what?
Options:
A. direction
B. pressure
C. frequency
D. gravity | A |
Question: Generally speaking, electronegativity values ______ from left to right across a row in the periodic table and _______ down a column.
Options:
A. decrease, increase
B. move, fall
C. reverse, descend
D. increase, decrease | D |
Question: The most magnetic material in nature is what?
Options:
A. magnetite
B. crystals
C. gold
D. molecules | A |
Question: Goldfish, tuna, salmon, perch, and cod are examples of which group of fish?
Options:
A. cartilaginous fish
B. spiny-lobed fish
C. bony fish
D. ray-finned fish | D |
Question: A bicycle is an example of a compound machine made of many what?
Options:
A. simple machines
B. interchangeable machines
C. useful machines
D. linked machines | A |
Question: What is the term for a system maintaining a stable internal environment in a changeable external environment?
Options:
A. homeostasis
B. hypothesis
C. Pregnant
D. fetus | A |
Question: When carbon atoms are not bonded to as many hydrogen atoms as possible, what kind of hydrocarbon results?
Options:
A. unsaturated
B. saturated
C. unstable
D. aqueous | A |
Question: When magma heats groundwater, it may come to the surface as a hot spring or a what?
Options:
A. volcano
B. pond
C. cave
D. geyser | D |
Question: Fish have a circulatory system with a two-chambered what?
Options:
A. lung
B. heart
C. brain
D. stomach | B |
Question: What is the measure of water potential?
Options:
A. megapascals
B. trials
C. fluctuations
D. spores | A |
Question: What is the largest organelle in a eukaryotic cell?
Options:
A. cortex
B. epidermis
C. apoptosis
D. nucleus | D |
Question: Neurologists are physicians who specialize in disorders of what system?
Options:
A. nervous system
B. circulatory system
C. musculoskeletal system
D. digestive system | A |
Question: How is flowing water and blowing wind similar?
Options:
A. processes particles
B. phases particles
C. stocks particles
D. transports particles | D |
Question: What is the study of heredity called?
Options:
A. geriatrics
B. pediatrics
C. heretics
D. genetics | D |
Question: What is a disease characterized by high concentrations of glucose in the blood?
Options:
A. myeloma
B. hepatitis
C. diabetes
D. leukemia | C |
Question: What is responsible for the properties of metals?
Options:
A. the metallic properties
B. the metallic presence
C. the metallic yield
D. the metallic bond | D |
Question: What is the first year of life following birth called?
Options:
A. toddler
B. baby
C. childhood
D. infancy | D |
Question: Where are electrons located in relation to the nucleus?
Options:
A. in the nucleus
B. outside the nucleus
C. though the nucleus
D. In a sack attached to the nucleus | B |
Question: What type of switch automatically opens a circuit if too much current flows through it?
Options:
A. circuit breaker
B. kill switch
C. toggle switch
D. regulator switch | A |
Question: The net effect of aldosterone is to conserve and increase water levels in the plasma by reducing the excretion of what element, and thus water?
Options:
A. sodium
B. lithium
C. oxygen
D. potassium | A |
Question: An element that is generally a poor conductor of heat and electricity is known as a ______
Options:
A. superconductor
B. alloy
C. magnet
D. nonmetal | D |
Question: An electron in an atom is completely described by four of what?
Options:
A. quantum numbers
B. decay numbers
C. photosynthesis numbers
D. prime bumbers | A |
Question: Organic compounds are molecules built around what element?
Options:
A. phosphorus
B. carbon
C. oxygen
D. helium | B |
Question: What is the term for the application of science to solve problems?
Options:
A. technology
B. mathematics
C. ingenuity
D. research | A |
Question: What sorts of collisions do not result in an overall loss of kinetic energy?
Options:
A. static
B. elastic
C. soft
D. powerful | B |
Question: The human genome has how many more alu elements than the chimpanzee genome?
Options:
A. ten
B. six times
C. two times
D. three times | D |
Question: What are all of the digits that can be known with certainty in a measurement plus an estimatied last digit called?
Options:
A. important figures
B. miniature figures
C. significant figures
D. determined figures | C |
Question: The human male and female reproductive cycles are controlled by the interaction of hormones from the hypothalamus and anterior pituitary with hormones from reproductive tissues and organs. in both sexes, the hypothalamus monitors and causes the release of hormones from this?
Options:
A. hypothalamus gland
B. ... | B |
Question: What property does liquid display when it interacts with glass?
Options:
A. property of oxidize
B. property of diffusion
C. property of repulsion
D. property of adhesion | D |
Question: Where does chemical digestion mainly occur?
Options:
A. pancreas
B. small intestine
C. liver
D. apendix | B |
Question: What is the name of the first leaf developed inside an embryo?
Options:
A. exon
B. polylepis
C. gastromyzon
D. cotyledon | D |
Question: Interconnected pathways through which carbon is recycled through the biotic and abiotic components of what?
Options:
A. atmosphere
B. biosphere
C. hemisphere
D. ozone | B |
Question: Composed largely of the polysaccharide chitin, the exoskeleton provides an effective barrier defense against most what?
Options:
A. white blood cells
B. pathogens
C. parasites
D. vaccines | B |
Question: A wall of rocks or concrete that juts out into the ocean perpendicular to the shore is called?
Options:
A. shield
B. fault
C. rib
D. groin | D |
Question: Oils are liquid lipids that plants use to store what?
Options:
A. carbo
B. Protein
C. energy
D. fat | C |
Question: A perfectly inelastic collision reduces internal kinetic energy to the minimum it can have while still conserving what?
Options:
A. heat
B. momentum
C. energy
D. elements | B |
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