Some viruses do not affect the host and live in what kind of state in the body?
Options:
- (A) inactive
- (B) devastating
- (C) recovery
- (D) negative
- (E) hyperactive
- (F) sleep
- (G) excited
- (H) cold
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Let's think first: Some viruses live in a dormant state inside the body. When inactive or dormant, Dendrobiums require little or no fertilizer. Some viruses live in an inactive state inside the body.... So the answer is [(A)]

A thing which is what produces eggs and sperm?
Options:
- (A) seeds
- (B) fertile
- (C) insects
- (D) organ
- (E) a fish
- (F) pollen
- (G) barnacles
- (H) sessile
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Let's think first: Adult sponges produce eggs and sperm. All adult sponges are sessile. A thing which is sessile produces eggs and sperm.... So the answer is [(H)]

What is a source of drinking water?
Options:
- (A) ice expanding in rock openings
- (B) helping to prevent floods
- (C) industrial runoff
- (D) it helps plants in growing
- (E) Water seeping out of a spring
- (F) salt water
- (G) polluted water
- (H) Something with a head, thorax, and abdomen
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Let's think first: Streams may start with runoff or water seeping out of a spring. Lakes and streams are sources of drinking water. Water seeping out of a spring is a source of drinking water.... So the answer is [(E)]

What wets the skin, and when it evaporates, it cools the body?
Options:
- (A) Heat energy
- (B) salt and water
- (C) acetic acid
- (D) urine
- (E) ice
- (F) Chlorophyll
- (G) white vinegar
- (H) blood
--
Let's think first: Sweat wets the skin, and when it evaporates, it cools the body. Sweat is made of salt and water. Water and salt wets the skin, and when it evaporates, it cools the body.... So the answer is [(B)]

_ are aerobic
Options:
- (A) goats
- (B) plants
- (C) algae
- (D) moss
- (E) cells
- (F) chloroplast
- (G) complex
- (H) humans
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Let's think first: Cells cannot survive without oxygen. Bacteria that require oxygen are aerobic. Cells are aerobic.... So the answer is [(E)]

What contains deoxyribonucleic acid but not much else.
Options:
- (A) minerals
- (B) bacteria
- (C) loose soil
- (D) pollen
- (E) viruses
- (F) anemia
- (G) PDAs
- (H) vertebrates
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Let's think first: Viruses contain DNA but not much else. DNA is an abbreviation for deoxyribonucleic acid. Viruses contain deoxyribonucleic acid but not much else.... So the answer is [(E)]