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Question: The hormone androgen increases aggressiveness and promotes what type of behaviors? Options: A. nervous B. asexual C. sexual D. cognitive Answer:
C
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Question: What is the cause of common mold allergies? Options: A. viruses B. immobile mold spores C. airborne mold spores D. bacteria Answer:
C
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Question: The sodium-potassium pump is an active transport pump that exchanges sodium ions for what? Options: A. chlorine ions B. oxygen ions C. nitrogen ions D. potassium ions Answer:
D
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Question: The two types of glaciers are continental and what other kind? Options: A. macro B. micro C. rolling D. valley Answer:
D
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Question: What is the term for coiled structures made of dna and proteins? Options: A. platelets B. chromosomes C. nodes D. neutrons Answer:
B
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Question: Which is the least massive outer planet? Options: A. uranus B. venus C. jupiter D. mars Answer:
A
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Question: What is the name of the line used in topographic maps that shows different elevations? Options: A. a contour line B. a crater line C. a patch line D. a curve line Answer:
A
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Question: What occurs when arterioles lose their normal muscular tone and dilate dramatically? Options: A. congenital shock B. cardio shock C. respiration shock D. vascular shock Answer:
D
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Question: The multifidus muscle of the lumbar region helps extend and laterally flex this? Options: A. knee B. pelvic muscle C. forearm D. vertebal column Answer:
D
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Question: Melting ice and grinding wood into sawdust are examples of what? Options: A. physical changes B. chemical changes C. reversible changes D. unpredictable changes Answer:
A
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Question: What will the contraction of smooth muscles help organs do? Options: A. carry out functions B. move joints C. move across distances D. fine motor movements Answer:
A
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Question: What are the two components of all solutions? Options: A. concentration and solvent B. solute and cytosol C. solute and solvent D. sodium and solvent Answer:
C
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Question: Which is the largest planet in our solar system? Options: A. uranus B. jupiter C. titan D. neptune Answer:
B
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Question: When do homologous chromosomes separate and go to different gametes? Options: A. during electrolysis B. after meiosis C. during meiosis D. before meiosis Answer:
C
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Question: Of all the mineral nutrients, what contributes the most to plant growth and crop yields? Options: A. methane B. nitrogen C. silicon D. oxygen Answer:
B
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Question: Because water expands when it freezes, what property of water is lower when it is in a solid state than a liquid? Options: A. density B. salinity C. volume D. mass Answer:
A
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Question: Gfci stands for ground-fault circuit what? Options: A. inspiration B. infers C. isolates D. interrupter Answer:
D
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Question: The duodenum has a major role in regulating what digestive organ and its emptying? Options: A. respiratory B. stomach C. skin D. kidneys Answer:
B
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Question: Each hemisphere of the cerebrum consists of four parts, called what? Options: A. quarters B. rows C. lobes D. layers Answer:
C
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Question: What is the measure of an individual’s weight-to-height ratio called? Options: A. body matter index (bmi) B. density index (di) C. body mass index (bmi) D. body density index (bdi) Answer:
C
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Question: What is the term for a disease that is not contagious? Options: A. benign B. uncultured disease C. noninfectious disease D. common cold Answer:
C
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Question: Endotherms are warmed mostly by heat generated by what? Options: A. the sun B. movement C. metabolism D. electricity Answer:
C
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Question: What was once believed to be the smallest of all particles, as dalton's theory proposed? Options: A. neutron B. molecule C. atom D. nucleus Answer:
C
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Question: What are made in the first step of the scientific method? Options: A. observations B. conclusions C. patterns D. hypothesis Answer:
A
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Question: What class of animals includes the subgroups rodents, carnivores, insectivores, bats, and primates? Options: A. reptiles B. insects C. mammals D. amphibians Answer:
C
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Question: The neural plate undergoes a series of cell movements where it rolls up and forms a tube called what? Options: A. neural tube B. cell tube C. occular tube D. peripheral tube Answer:
A
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Question: What type of transport requires no energy and occurs when substances move from areas of higher to lower concentration? Options: A. bacterial transport B. immune transport C. active transport D. passive transport Answer:
D
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Question: During an earthquake, wet soils become like what? Options: A. sand B. water C. rock D. quicksand Answer:
D
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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. smooth muscle B. nervous muscle C. cardiac muscle D. skeletal muscle Answer:
C
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Question: Distance traveled divided by time is equal to what? Options: A. direction B. frequency C. momentum D. speed Answer:
D
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Question: An object attached to a spring sliding on a frictionless surface is an uncomplicated type of what device? Options: A. wheel and axle B. simple harmonic oscillator C. pendulum D. atomic watch Answer:
B
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Question: Besides the size of their crystals, how are igneous rocks grouped? Options: A. by shapes B. impurities they contain C. minerals they contain D. by color Answer:
C
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Question: What are the ultimate source of genetic variation? Options: A. proteins B. gravity C. mutations D. parasites Answer:
C
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Question: In a science lab, what device would you use to measure the volume of a liquid? Options: A. anemometer B. Richter scale C. graduated cylinder D. yardstick Answer:
C
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Question: A skeleton that consists of hard, mineralized structures located within the soft tissue of organisms is called what? Options: A. calcium deposits B. hydrostatic skeleton C. exoskeleton D. endoskeleton Answer:
D
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Question: In the lungs, oxygen diffuses out of the alveoli and into where? Options: A. capillaries B. neurons C. blood D. cillia Answer:
A
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Question: What kind of phenotype results in a case of incomplete dominance? Options: A. intermediate phenotype B. short phenotype C. long phenotype D. backward phenotype Answer:
A
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Question: What state of matter is like a liquid in that particles are in contact with each other, but unlike liquids in that the intermolecular forces are strong enough to hold the particles in place? Options: A. plasmas B. fluids C. solids D. gases Answer:
C
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Question: An equipotential line is a line along which the electric potential is wht? Options: A. increasing B. changeable C. decreasing D. constant Answer:
D
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Question: Kepler's laws relate to the motion of what? Options: A. continents B. planets C. the sun D. oceans Answer:
B
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Question: What happens to the wire in a fuse if it's current rating is exceed? Options: A. ignites B. it melts C. disappears D. sparks Answer:
B
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Question: The cell wall acts as an extra layer of protection, helps the cell maintain its shape, and prevents what? Options: A. extinction B. Respiration C. exhaustion D. dehydration Answer:
D
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Question: The enzyme pepsin works only in the presence of what? Options: A. oxygen B. acid C. sodium D. carbohydrates Answer:
B
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Question: Electrical messages are carried by chemicals called what? Options: A. receptors B. neurotransmitters C. amino acids D. Biotoxins Answer:
B
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Question: What are the two main types of diabetes? Options: A. type a, b B. type 0, 1 C. type 1, type 2 D. type 3, 4 Answer:
C
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Question: The simplest type of battery contains what? Options: A. multiple cells B. alkaline C. single cell D. water Answer:
C
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Question: What thin layer of air acts as a barrier to prevent cool air from mixing with warm air in the stratosphere? Options: A. tropopause B. liposphere C. endosphere D. methosphere Answer:
A
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Question: The way a mineral cleaves or fractures depends on what part of the mineral? Options: A. the crust B. the crystal structure C. the core D. the fault structure Answer:
B
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Question: Through which process does water from the oceans enter the atmosphere? Options: A. absorption B. evaporation C. perspiration D. oxidation Answer:
B
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Question: What is the smallest class of elements? Options: A. synthetics B. metalloids C. halogens D. noble gases Answer:
B
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Question: What is required between cytoskeleton and motor proteins for cell motility? Options: A. interaction B. translation C. inhibition D. absorption Answer:
A
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Question: What measures the amount of water in the air? Options: A. cloud cover B. fire index C. temperature D. humidity Answer:
D
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Question: What causes the endometrium to thicken during a menstrual cycle? Options: A. estradiol B. ovulation C. testosterone D. blood Answer:
A
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Question: Unlike nuclear fission, which involves dangerous radioisotopes, nuclear fusion involves what two harmless elements? Options: A. hydrogen and oxygen B. magnesium and helium C. hydrogen and carbon D. hydrogen and helium Answer:
D
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Question: The largest phylum of the animal kingdom is what? Options: A. cephalopods B. arthropods C. crustaceans D. mammals Answer:
B
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Question: What is the term for organisms that can maintain a stable body temperature even in the face of large fluctuations in the environmental temperature? Options: A. endotherms B. homeotherm C. pachyderm D. ectotherms Answer:
A
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Question: Cancer occurs most often in adults over what age? Options: A. fifty B. thirty C. twenty D. seventy Answer:
A
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Question: Bacterial contamination of foods can lead to digestive problems called what? Options: A. butterflies in your stomach B. the flu C. food poisoning D. cancer Answer:
C
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Question: What is the long-term average of weather in a particular spot called? Options: A. temperature B. weather C. migration D. climate Answer:
D
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Question: What is the amount of force pushing against a given area? Options: A. pressure B. energy C. inertia D. power Answer:
A
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Question: Where the axon emerges from the cell body, there is a special region referred to as the what? Options: A. dendrite B. axon hillock C. axosomatic synapse D. cellular hillock Answer:
B
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Question: Respiration cycles the organic carbon into which gas? Options: A. carbon dioxide B. liquid dioxide C. oxygen D. phosphorus dioxide Answer:
A
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Question: What are the ionic compounds that produce negative hydroxide ions when dissolved in water? Options: A. isotopes B. enzymes C. acids D. bases Answer:
D
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Question: What do we call heated groundwater that erupts from the ground under pressure? Options: A. aquifers B. springs or geysers C. spas D. volcanic eruptions Answer:
B
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Question: In weather terms, what do you call the boundary between two air masses? Options: A. front B. cloud C. mass D. cover Answer:
A
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Question: What causes the changes of puberty? Options: A. testosterone B. glucose C. estrogen D. insulin Answer:
C
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Question: Hair is a component of which bodily system? Options: A. trypeta system B. circulatory C. integumentary system D. relatable system Answer:
C
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Question: Name the most famous satellite of the earth? Options: A. the moon B. sputnik C. skylab D. demos Answer:
A
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Question: What are trees that lose their leaves during winter called? Options: A. deciduous B. coniferous C. fungus D. fruits Answer:
A
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Question: The reaction of which body system causes food allergies? Options: A. lymphatic system B. immune system C. nervous system D. cardiac system Answer:
B
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Question: What do you call the preserved remains or traces of organisms that lived in the past? Options: A. fossils B. decomposition C. corals D. skulls Answer:
A
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Question: What is the name for the process of charging an object by touching it with another charged object? Options: A. charging by conduction B. charging by connection C. charging by convection D. charging by transfer Answer:
A
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Question: What instrument has a resolution many times greater than a light microscope, and can be used to see the details on the outside of a cell? Options: A. element microscope B. complex microscope C. molecular microscope D. electron microscope Answer:
D
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Question: The e. coli chromosome, like many other bacterial chromosomes, is what shape? Options: A. square B. circular C. triangular D. oval Answer:
B
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Question: Both oxygen and glucose are transported within the body via what? Options: A. marrow B. heart C. bone D. blood Answer:
D
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Question: Fine-grained mud in the deep ocean comes from silts and clays brought from the land by? Options: A. waves B. wind C. water D. fire Answer:
B
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Question: What term refers to a change in species over time? Options: A. spontaneous change B. generation C. evolution D. mutation Answer:
C
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Question: The product of a system’s mass multiplied by its velocity is called what? Options: A. variation momentum B. horizontal momentum C. linear momentum D. magnetic momentum Answer:
C
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Question: What does interspecific competition between species often lead to? Options: A. evolution B. immigration C. symbiosis D. extinction Answer:
D
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Question: What are the four well-known states of matter? Options: A. solid, liquid, gas, and plasma B. solid , imine , gas , and plasma C. solid, liquid, plasma, and metal D. solid, liquid, gas, and wave Answer:
A
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Question: The ammonium ion is what type of acid? Options: A. normal -lowry B. oxidized - lowry C. brønsted-lowry D. kaon - lowry Answer:
C
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Question: Cephalochordates have a notochord and nerve cord but not a? Options: A. backbone B. nervous system C. digestive system D. brain Answer:
A
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Question: If more coils are added to an electromagnet it becomes? Options: A. brighter B. stronger C. weaker D. lighter Answer:
B
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Question: Skeletal, cardiac, and smooth are all types of what? Options: A. muscle B. Epithelial C. Nervous D. Connective Answer:
A
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Question: Which reaction between alkyl halides and ammonia makes alkylamines? Options: A. nucleophobic reactions B. nucleophilic substitution reactions C. nitrogen catabolism D. conductive substitution reactions Answer:
B
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Question: What organ does asthma periodically cause to narrow? Options: A. ovaries B. intestines C. lungs D. liver Answer:
C
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Question: What is the difference between oils and fats at room temperature? Options: A. liquid and solid states B. liquid and gas states C. solid and gas states D. saturated and unsaturated Answer:
A
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Question: In a nuclear power plant, what typically spins in order to produce electricity? Options: A. grid B. turbine C. generator D. pipe Answer:
B
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Question: How many bases does dna have in total? Options: A. six B. four C. twelve D. three Answer:
B
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Question: Water that is lost through the skin through evaporation from the skin surface without overt sweating and from air expelled from the lungs is known as what? Options: A. dehydration B. osmotic process C. insensible water loss D. logical water loss Answer:
C
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Question: What term is used to describe the attractive force between molecules of the same substance? Options: A. attraction B. cohesion C. strength D. magnetism Answer:
B
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Question: Light waves which interfere with themselves after interaction with a small aperture or target are said to what? Options: A. diffract B. reflect C. adduce D. refract Answer:
A
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Question: What zone is outside the radiative zone? Options: A. activation zone B. convection zone C. diffusion zone D. peripheral zone Answer:
B
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Question: How do autotrophs get food? Options: A. From Plant matter B. Soak up from host cell C. make their own D. From Water Answer:
C
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Question: What is the main form of energy storage in plants? Options: A. nitrogen B. liquid C. starch D. dioxide Answer:
C
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Question: What device measures current that flows through wire? Options: A. protractor B. ammeter C. resistor attachment D. Geiger counter Answer:
B
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Question: Mammals have a number of kinds of thermoreceptors, each specific for a particular what? Options: A. temperature range B. electrical range C. weight range D. oxygen range Answer:
A
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Question: Who developed a classification system that divided living things into several groups that we still use today, including mammals, insects, and reptiles? Options: A. harrold B. darwin C. aristotle D. jung Answer:
C
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Question: Alleles that carry deadly diseases are usually which type? Options: A. dominant B. predominant C. recessive D. inherited Answer:
C
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Question: What kind of equal and opposite forces cancel one another out when they act on the same object? Options: A. exact B. combined C. solid D. balanced Answer:
D