Which of the following molecules would not be considered a lipid? A. cellulose

B. steroids

C. phospholipids

D. testerone

E. estrogen

F. all of the above are examples of some form of lipids.

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There are specialized producers that live in warm water vents deep in the ocean. these producers do not per-form from photosynthesis, but instead perform a similar process with iron and other chemicals. why do you think these producers use this process instead of photosynthesis?

Which of the following best describes the expensive tissue hypothesis? brains require more energy, so the gut had to be reduced, and larger brains and tool use led to higher quality diets. increasing body size means that homo neanderthalensis had to include more fat in its diet. brains require more energy, so the gut had to be reduced as brains got bigger. brains require more fat, so the gastrointestinal viscera (gut) had to expand, and hands were needed to acquire more food.

Explain how the parts of the peripheral nervous system work with the central nervous system to produce a response to the stimulus