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Question: What resource is considered nonrewable for human purposes, because it takes so long to form and is depleted by farming and other activities?
A. sunshine.
B. water.
C. acid.
D. soil.
Answer: D soil. | 11,643 |
Question: What in orange juice makes it taste sour?
A. carbonation.
B. acetic acid.
C. citric acid.
D. amino acid.
Answer: C citric acid. | 11,644 |
Question: What scientist created the modern system for classifying organisms?
A. linnaeus.
B. Newton.
C. Pasteur.
D. Bohr.
Answer: A linnaeus. | 11,645 |
Question: What will be the effect to an organism if its homeostasis is not maintained?
A. death or disease.
B. healthy mental state.
C. weight regulation.
D. slow aging.
Answer: A death or disease. | 11,646 |
Question: Since warmer molecules have more energy, they are more what?
A. dense.
B. active.
C. abundant.
D. inactive.
Answer: B active. | 11,647 |
Question: If only blue light strikes green leaves what happens to it?
A. it causes heating.
B. it causes cooling.
C. it is absorbed.
D. it is reflected.
Answer: C it is absorbed. | 11,648 |
Question: Which type of animal creates useful substances such as honey, wax, lacquer, and silk?
A. spiders.
B. insects.
C. fungus.
D. bacteria.
Answer: B insects. | 11,649 |
Question: Stringed instruments can help show the relationship between tension and what in strings?
A. volumes.
B. frequencies.
C. temperatures.
D. lengths.
Answer: B frequencies. | 11,650 |
Question: Ectotherms undergo a variety of changes at the cellular level to acclimatize to shifts in what?
A. density.
B. temperature.
C. altitude.
D. volume.
Answer: B temperature. | 11,651 |
Question: Convex lenses are thicker in the middle than at the edges so they cause rays of light to converge, or meet, at a point called what?
A. the apex.
B. focus.
C. the base.
D. the center.
Answer: B focus. | 11,652 |
Question: What are magnesium carbonate, aluminum hydroxide, and sodium bicarbonate commonly used as?
A. antidepressants.
B. antacids.
C. salts.
D. antibiotics.
Answer: B antacids. | 11,653 |
Question: What type of taste do bases normally have?
A. bitter.
B. sweet.
C. salty.
D. sour.
Answer: A bitter. | 11,654 |
Question: Which body part helps roundworm prevent their body from expanding?
A. plate.
B. scales.
C. skin.
D. tough cuticle covering.
Answer: D tough cuticle covering. | 11,655 |
Question: The maintenance of constant conditions in the body is also known as what?
A. consciousness.
B. mononucleosis.
C. homeostasis.
D. hypothesis.
Answer: C homeostasis. | 11,656 |
Question: What is the term for tough protein fibers that connects bones to each other?
A. muscles.
B. cords.
C. tetons.
D. ligaments.
Answer: D ligaments. | 11,657 |
Question: What is the study of macroscopic properties, atomic properties, and phenomena in chemical systems?
A. thermal chemistry.
B. differential chemistry.
C. physical chemistry.
D. molecular chemistry.
Answer: C physical chemistry. | 11,658 |
Question: Bones, cartilage, and ligaments make up what anatomical system?
A. Integumentary system.
B. skeletal system.
C. Muscular system.
D. Lymphatic system.
Answer: B skeletal system. | 11,659 |
Question: What is the first part of the large intestine called?
A. jejunum.
B. cecum.
C. duodenum.
D. colon.
Answer: B cecum. | 11,660 |
Question: What occurs when nature reclaims areas formerly occupied by life?
A. primary succession.
B. typical succession.
C. secondary succession.
D. tertiary succession.
Answer: C secondary succession. | 11,661 |
Question: To solubilize the fats so that they can be absorbed, what organ secretes a fluid called bile into the small intestine?
A. gall bladder.
B. small intestine.
C. spleen.
D. stomach.
Answer: A gall bladder. | 11,662 |
Question: When the hemoglobin loses its oxygen, it changes to what color?
A. bluish red.
B. grayish red.
C. light pink.
D. purple red.
Answer: A bluish red. | 11,663 |
Question: How are weather patterns formed?
A. pollution from planes.
B. the moon's gravitational pull.
C. carbon dioxide.
D. uneven heating of the atmosphere.
Answer: D uneven heating of the atmosphere. | 11,664 |
Question: Boyle discovered that what property of a gas is inversely proportional to its volume?
A. mass.
B. amount.
C. pressure.
D. temperature.
Answer: C pressure. | 11,665 |
Question: What amazing machines smash particles that are smaller than atoms into each other head-on?
A. particle accelerators.
B. nitrogen accelerators.
C. absorption accelerators.
D. observant accelerators.
Answer: A particle accelerators. | 11,666 |
Question: The interaction of what opposite factors describe a biome and ecosystem?
A. hygroscopic and abiotic.
B. metastasis and biotic.
C. innate and biotic.
D. abiotic and biotic.
Answer: D abiotic and biotic. | 11,667 |
Question: What is caused by differences in density at the top and bottom of the ocean?
A. shallow currents.
B. still water.
C. flat currents.
D. deep currents.
Answer: D deep currents. | 11,668 |
Question: What is the layer of tissue between the body and shell called?
A. cuticle.
B. collagen.
C. mantle.
D. epidermis.
Answer: C mantle. | 11,669 |
Question: Well suited to absorb water and dissolved minerals from the soil, thin-walled dermal cells and tiny hairs cover what basic plant structures?
A. roots.
B. flowers.
C. leaves.
D. stems.
Answer: A roots. | 11,670 |
Question: What is the major artery of the body, taking oxygenated blood to the organs and muscles of the body?
A. aorta.
B. capillary.
C. carotid.
D. diastolic.
Answer: A aorta. | 11,671 |
Question: What do you call a growing mass of cancerous cells that pushes into nearby tissues?
A. calcium.
B. pallet.
C. bacteria.
D. tumor.
Answer: D tumor. | 11,672 |
Question: What is the major intracellular cation?
A. sodium.
B. glucose.
C. potassium.
D. magnesium.
Answer: C potassium. | 11,673 |
Question: The enzyme pepsin plays an important role in the digestion of proteins by breaking down intact protein to what short-chain amino acids?
A. peptides.
B. protons.
C. lipids.
D. proteins.
Answer: A peptides. | 11,674 |
Question: What remains a constant of radioactive substance over time?
A. rate of decay.
B. volatility.
C. acidity.
D. temperature.
Answer: A rate of decay. | 11,675 |
Question: Terrestrial ecosystems, also known for their diversity, are grouped into large categories called what?
A. biomes.
B. substrates.
C. monomes.
D. bisomes.
Answer: A biomes. | 11,676 |
Question: High explosives create shock waves that exceed the speed of sound, a phenomenon that goes by what term?
A. ion speed.
B. turbulence.
C. supersonic.
D. light speed.
Answer: C supersonic. | 11,677 |
Question: What do you call a structure composed of two or more types of tissues that work together to do a specific task?
A. system.
B. cell.
C. organ.
D. marrow.
Answer: C organ. | 11,678 |
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