Skin, hair, muscles, and enzymes are all made up of ______________
A) proteins
B) organelles
C) lipids
D) carbohydrates
E) nucleic acids
Correct Answer:
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Q32: River water held behind a dam is
Q33: Forming the cell walls of stems, leaves,
Q34: Net primary productivity is _
A) the energy
Q35: In the flow of matter in ecosystems,
Q36: The greatest planetary pool of nitrogen is
Q38: The trophic level of ʺproducersʺ includes _
A)
Q39: That all the energy of the universe
Q40: During photosynthesis within plants, _
A) entropy increases
B)
Q41: Briefly discuss how human activities have affected
Q42: Some organisms, such as plants, algae, and
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