To learn more about the average weather, it is essential to:
Options:
- (A) staying warm
- (B) observe it
- (C) argue about it
- (D) ignore it
- (E) survive
- (F) temperature
- (G) A computer
- (H) write about it
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Let's think first: Climate is the average weather in an area over a long period of time. Along with simulating the climate, it is crucial to observe the climate. It is essential to observe the average weather in one place over time.... So the answer is [(B)]
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Cells pretty much al share this one characteristic:
Options:
- (A) sensory neurons
- (B) voltage
- (C) aerobic capacity
- (D) microscopic
- (E) eukaryotic
- (F) bacteria
- (G) prokaryotic
- (H) layers of fat
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Let's think first: Cells vary in size as well as shape, but all cells are very small. All cells are microscopic in size. Cells can vary in shape, but they are all microscopic.... So the answer is [(D)]
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Antigens are molecules that prompt the what of antibodies?
Options:
- (A) termination
- (B) failure
- (C) humans
- (D) decrease
- (E) production
- (F) anemia
- (G) rapid expansion
- (H) kinetic
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Let's think first: Antigens are molecules that the immune system recognizes as foreign to the body. Antigens prompt the body to produce antibodies. Antigens are molecules that prompt the production of antibodies.... So the answer is [(E)]
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Viruses are so small that to see them a scientist would have to use what kind of lens?
Options:
- (A) Refract it
- (B) refraction of light
- (C) an electron lens
- (D) an image
- (E) rays or beams
- (F) bending light rays
- (G) A computer
- (H) flashlights
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Let's think first: Viruses are so small that they can be seen only with an electron microscope. On the surface of each microscopic color filter is also a microscopic lens. Viruses are so small that they can be seen only with an electron lens.... So the answer is [(C)]
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