What has permeable skin?
Options:
- (A) goats
- (B) alligators
- (C) animals
- (D) apples
- (E) frogs
- (F) sharks
- (G) humans
- (H) snakes
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Let's think first: Amphibians have permeable skin that easily absorbs substances from the environment. All frogs are amphibians. Frogs have permeable skin that easily absorb substances in the environment.... So the answer is [(E)]

How does a squid produce?
Options:
- (A) Energy.
- (B) photons
- (C) voltage
- (D) sexually
- (E) Energy
- (F) bioaerosols
- (G) waves
- (H) food
--
Let's think first: Mollusks reproduce sexually. Interestingly, a squid is also a mollusk. Squids produce sexually.... So the answer is [(D)]

What is used for energy in most cells?
Options:
- (A) sugar
- (B) sodium
- (C) muscle
- (D) maples
- (E) calcium
- (F) food
- (G) silicon
- (H) Energy
--
Let's think first: Glucose is used for energy by the cells of most organisms. Blood Sugar Glucose is sugar. Sugar is used for energy for the cells of most organisms.... So the answer is [(A)]