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Question: Cells that undergo cell division continue to have their telomeres shortened, thus telomere shortening is associated with what life process? Options: A. reproduction B. reducing C. metabolism D. aging Answer:

D

Question: When you burn wood into ash or burn a marshmallow to become brown and crispy, it is impossible to undo. this change is known as what? Options: A. carbon change B. physical change C. compounding change D. chemical change Answer:

D

Question: What can be described in terms of physical properties and chemical properties as well as its defining states? Options: A. mass B. energy C. matter D. empty space Answer:

C

Question: The hexapoda subphylum includes mainly what type of animal? Options: A. spiders B. mammals C. birds D. insects Answer:

D

Question: Found in many electric devices, what is a coil of wire wrapped around a bar of iron or other ferromagnetic material? Options: A. battery B. actuator C. electromagnet D. superconductor Answer:

C

Question: Genetic equilibrium occurs when what process doesn't exist within the population? Options: A. evolution B. movement C. variation D. reproduction Answer:

A

Question: What does increased temperature cause the volume to do in a gas? Options: A. disappear B. decrease C. halve D. increase Answer:

D

Question: The force that a magnet exerts on certain materials is called what? Options: A. centripetal force B. velocity force C. stellar force D. magnetic force Answer:

D

Question: Very large stars eventually become what extremely dense space regions, which are so dense that no light can escape from them? Options: A. worm holes B. dark matter C. moons D. black holes Answer:

D

Question: The epidermis is made of which closely packed cells? Options: A. cancer cells B. muscle cells C. epithelial cells D. nerve cells Answer:

C

Question: Where do streams often start? Options: A. mountains B. oceans C. valleys D. plains Answer:

A

Question: How is communication initiated and maintained with spacecraft? Options: A. radio waves B. sonar C. telegraph D. wi-fi Answer:

A

Question: Adding a solute does what to the boiling point of a pure solvent? Options: A. increases it B. no effect C. reduces it D. silences it Answer:

A

Question: What part of the brain controls body position, coordination, and balance? Options: A. brain stem B. cerebellum C. right brain D. cerebrum Answer:

B

Question: What are the four stages of food processing? Options: A. ingestion, digestion, absorption, and elimination B. ingestion, reproduction, absorption, and elimination C. ingestion, digestion, absorption, and reproduction D. ingestion, digestion, elimination and extinction Answer:

A

Question: What is the term for physicians and scientists who research and develop vaccines and treat and study conditions ranging from allergies to aids? Options: A. vaccinologists B. virologists C. immunologists D. endocrinologists Answer:

C

Question: At which location is the earth hottest? Options: A. seabed B. desert C. meridian D. equator Answer:

D

Question: What is the active ingredient in cloves? Options: A. eugenol B. thiamine C. nicotine D. methyl Answer:

A

Question: Shedding of dead cells ensures constant renewal of what outer layer of the skin? Options: A. cuticle B. dermis C. epidermis D. scale Answer:

C

Question: What force is responsible for erosion by flowing water and glaciers? Options: A. electromagnetic B. weight C. gravity D. kinetic Answer:

C

Question: The ordovician-silurian extinction event is the first recorded mass extinction and the second largest. during this period, about what percent of marine species went extinct? Options: A. 99 percent B. 40 percent C. 85 percent D. 10 percent Answer:

C

Question: Because conifers carry both male and female sporophylls on the same mature sporophyte, they are considered what type of plant? Options: A. monoecious B. siliceous C. dioecious D. bioecious Answer:

A

Question: What is the name of the process where light is produced without heat? Options: A. radiation B. fluorescence C. luminescence D. effervescence Answer:

C

Question: Similarity in biochemicals, like the glucose used by virtually all living things for energy, provides evidence of what? Options: A. variation B. DNA C. gravity D. evolution Answer:

D

Question: The single circular dna chromosome of bacteria is not enclosed in what, but instead occupies a specific location called the nucleoid within the cell? Options: A. atom B. nucleus C. protons D. molecules Answer:

B

Question: Designed to support the weight of the upper body when sitting and transfer this weight to the lower limbs when standing, what body structure consists of four bones: right and left hip bones, sacrum, and coccyx? Options: A. pelvis B. Chest C. lungs D. tissues Answer:

A

Question: What is corrosive mixture is formulated by the combination of water, air and sulfur? Options: A. sulfuric water B. hydrochloric acid C. sulfuric acid D. nitric acid Answer:

C

Question: How will global warming eliminate some islands and reduce the area of others? Options: A. lower sea levels B. unafect sea levels C. raise sea levels D. affect sea levels Answer:

C

Question: What does the precise pattern of a crystal depend on? Options: A. compound B. mass C. age D. chance Answer:

A

Question: What is the base of nearly all food chains on earth? Options: A. photosynthesis B. synthesis C. glycolysis D. atherosclerosis Answer:

A

Question: What part of an atom is positive due to the presence of positively charged protons? Options: A. Proton B. Electron C. nucleus D. Neutron Answer:

C

Question: What is manufactured and added to foods to preserve freshness? Options: A. vitamin c B. carbohydrates C. trans fat D. protein Answer:

C

Question: What is the only light that humans can see? Options: A. distinct light B. bright light C. dark light D. visible light Answer:

D

Question: Sexually reproducing organisms alternate between which stages? Options: A. binary and diploid B. diploid and traploid C. binary and haploid D. haploid and diploid Answer:

D

Question: When do cells acquire different identities in an ordered spatial arrangement? Options: A. during morphogenesis B. before morphogenesis C. larval stage D. during mitosis Answer:

A

Question: How many stomach compartments do ruminants have? Options: A. four B. two C. seven D. five Answer:

A

Question: Compounds that are capable of accepting electrons, such as o 2 or f2, are called what? Options: A. oxidants B. residues C. Oxygen D. antioxidants Answer:

A

Question: What is the reaction called when an acid and a base react? Options: A. neutralization B. oxidation C. activation D. decomposition Answer:

A

Question: Exemplified by organisms that grow in geysers, hyperthermophiles "love" what? Options: A. heat B. humidity C. cold D. rainfall Answer:

A

Question: Photoautotrophs use what energy source to self-manufacture their own food? Options: A. water B. chlorophyll C. air D. light Answer:

D

Question: Along with muscles, what helps the body move with relatively little force? Options: A. limbs B. glands C. nerves D. joints Answer:

D

Question: Quantities have two parts: the number (how many) and what else? Options: A. the member B. the credit C. the motion D. he unit Answer:

D

Question: What structures on the gastrodermal cells keep the contents of the gastrovascular cavity agitated and help distribute nutrients? Options: A. telomeres B. sporangia C. nucleus D. flagella Answer:

D

Question: What is the term for any behavior that occurs only after experience or practice? Options: A. practiced behavior B. studied behavior C. learned behavior D. saved behavior Answer:

C

Question: During asexual reproduction, fungi produce haploid spores by what process involving a haploid parent cell? Options: A. divergence B. evaporation C. mitosis D. osmosis Answer:

C

Question: Pressure is defined as the force per unit area on? Options: A. weight B. speed C. gravity D. surface Answer:

D

Question: What is the disease in which cells grow out of control and form abnormal masses? Options: A. HIV B. cancer C. diabetes D. bronchitis Answer:

B

Question: How do fungus-like protists such as slime molds reproduce? Options: A. with spores B. sexually C. photosynthesis D. asexually Answer:

A

Question: What happens to atoms during a substitution reaction? Options: A. replace another in a molecule B. impaction C. disintegrate D. fusion Answer:

A

Question: About 50% of all animal species died off between the mesozoic and which other era? Options: A. cretaceous B. precambrian C. jurassic D. cenozoic Answer:

D

Question: What two types of atoms bond to form sulfate minerals? Options: A. carbon and sulfur B. oxygen and sulfur C. oxygen and calcium D. oxygen and carbon Answer:

B

Question: What is the term for the length of the route between two points? Options: A. area B. trajectory C. length D. distance Answer:

D

Question: This knocks electrons from atoms and turns them into ions? Options: A. convection B. radiation C. evaporation D. chemical reactions Answer:

B

Question: What fuels provide most of the energy used worldwide? Options: A. hydroelectric B. solar C. renewable D. fossil Answer:

D

Question: Where does an electron move to after it absorbs energy? Options: A. atomic orbit B. another electron C. a shell farther from the nucleus D. a shell closer to the nucleus Answer:

C

Question: The force exerted by the atmosphere on the earth’s surface can be measured with what instrument? Options: A. mass spectrometer B. barometer C. anemometer D. Geiger counter Answer:

B

Question: What is the name for the nonliving parts of ecosystems? Options: A. diverse factors B. nucleic factors C. Dead factors D. abiotic factors Answer:

D

Question: What system transports minerals and water in a plant? Options: A. stamen B. flowers C. roots D. leaves Answer:

C

Question: What is the physical breakdown of chunks of food into smaller pieces? Options: A. mechanical digestion B. dissolving C. mechanical catalyst D. mechanical accumulation Answer:

A

Question: When methane burns, what is produced along with carbon dioxide? Options: A. oxygen B. nitrogen C. water D. hydrogen Answer:

C

Question: What do you call people who study science and are experts in one or more fields of science? Options: A. animals B. chemists C. scientists D. doctors Answer:

C

Question: Where fossils of the genus eomaia found? Options: A. India B. china C. Japan D. Egypt Answer:

B

Question: What are the largest phylum of the animal kingdom? Options: A. Chelicerata B. Crustacea C. arthropods D. Pycnogonida Answer:

C

Question: What is a decrease in the magnitude of the membrane potential? Options: A. depolarization B. digestion C. inflammation D. ionization Answer:

A

Question: Proto-oncogenes can change into oncogenes that cause what? Options: A. Mutations B. cancer C. DNA D. Infections Answer:

B

Question: What is the common term for water in its solid state? Options: A. sea B. vapor C. ice D. precipitation Answer:

C

Question: What are considered to be the smallest particles of matter? Options: A. atoms B. ions C. molecules D. cells Answer:

A

Question: Mutations which benefit the organism in which they occur are known as? Options: A. helpful mutations B. extraordinary mutations C. healthy mutations D. beneficial mutations Answer:

D

Question: Equilibriums are affected by changes in concentration, total pressure or volume, and this? Options: A. oxygen B. temperature C. rate D. time Answer:

B

Question: What is a structure that is composed of one or more types of tissues? Options: A. organ B. node C. system D. muscle Answer:

A

Question: Salts of weak acids or bases can affect the acidity or what of their aqueous solution? Options: A. atomicity B. ductility C. compound D. basicity Answer:

D

Question: What is the layer above the mesophere called? Options: A. exosphere B. thermosphere C. stratosphere D. troposphere Answer:

C

Question: The density of bone is, in part, related to the amount of what mineral in one’s diet? Options: A. calcium B. nitrogen C. potassium D. barium Answer:

A

Question: What do we call the region on the lung root formed by the entrance of the nerves at the hilum? Options: A. brain plexus B. renal plexus C. pulmonary plexus D. heart plexus Answer:

C

Question: Each megasporangium has a single functional one of what? Options: A. spicule B. antispore C. megaspore D. cocklebur Answer:

C

Question: What determines which type of precipitation falls? Options: A. air temperature B. air currents C. air pressure D. ground temperature Answer:

A

Question: What tides occur during the new moon and full moon? Options: A. high B. spring C. autumn D. bottom Answer:

B

Question: What factors consist of parts of the environment that are or were alive, and their remains? Options: A. decomposition factors B. biotic factors C. xerophytic factors D. abiotic factors Answer:

B

Question: What kind of model - which includes producers, consumers and decomposers - shows the interactions between organisms across trophic levels? Options: A. organic web B. food web C. interdepence web D. fuel web Answer:

B

Question: At what temperature does solid water melt to a liquid? Options: A. above 32 degrees c B. below 32 degrees c C. at temperatures above 0 degrees c D. below 0 degrees c Answer:

C

Question: Traditional classification of mammals are based on similarities in what two things? Options: A. structure & function B. solution & function C. density & function D. Density and Structure Answer:

A

Question: When the wind deposits sand, it forms small hills, what are these hills called? Options: A. snow banks B. sand dunes C. sand tunnels D. mud puddles Answer:

B

Question: What is the term for the spacing of individuals within a population? Options: A. suspension B. equilibrium C. dispersion D. population density Answer:

C

Question: Some animals increase body fat in winter to stay? Options: A. aware B. cold C. thin D. warm Answer:

D

Question: Different types of home heating systems all function by producing what type of energy? Options: A. natural B. distinct C. electron D. thermal Answer:

D

Question: The maintenance of constant conditions in the body is also known as what? Options: A. mononucleosis B. hypothesis C. homeostasis D. consciousness Answer:

C

Question: The ileum is the last part of what organ, and is where the bile salts and vitamins are absorbed into blood stream? Options: A. large intestine B. small intestine C. stomach D. gall bladder Answer:

B

Question: What type of energy is produced when two objects move together? Options: A. molecular energy B. mechanical energy C. potential energy D. physical energy Answer:

B

Question: Melting ice is drastically impacting the number of what at glacier national park? Options: A. icebergs B. active glaciers C. trees D. gaisers Answer:

B

Question: What bonds result from the overlap of atomic orbitals? Options: A. valent B. hydrogen C. covalents D. metallic Answer:

C

Question: What type of diagnosis happens before a baby is born? Options: A. maternal B. prenatal C. postnatal D. fetal Answer:

B

Question: What gives a coil of copper wire the ability to conduct electricity well? Options: A. metallic bonds B. metallic ions C. optical bonds D. metallic electrons Answer:

A

Question: In humans, the only haploid cells are what reproductive cells? Options: A. sperm and dna B. sperm and egg C. uteral and sperm D. dna and egg Answer:

B

Question: Collateral ganglia controls organs in which cavity in the body? Options: A. pelvic B. cranial C. cardiac D. abdominal Answer:

D

Question: What is the study of ecosystems? Options: A. geology B. physics C. botany D. ecology Answer:

D

Question: The formula mass of a covalent compound is also called the what? Options: A. molecular mass B. ionic mass C. atomic mass D. nucleus mass Answer:

A

Question: Elasticity is the ability of a material to return to its original shape after being stretched or? Options: A. combustion B. compressed C. Contained D. correlated Answer:

B

Question: What can lenses be used to make? Options: A. visual representations B. comparison representations C. function representations D. aspect representations Answer:

A

Question: What mammalian structure allows the exchange of gases, nutrients, and other substances between the fetus and mother? Options: A. uterus B. notochord C. placenta D. mitochondria Answer:

C

Question: Who coined the term natural selection? Options: A. darwin B. shaw C. Pasteur D. Mendel Answer:

A