Which of these cell types can be described as muscle cells that contract rapidly, are rich in glycogen deposits, and depend on anaerobic respiration to produce ATP?
A) slow-twitch cells
B) fast-twitch cells
C) myoglobin
D) hemoglobin
B
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Viruses mutate, and some viruses have not been discovered.
Answer the following statement true (T) or false (F)
What is the purpose of the waxy cuticle in plants?
a. It prevents desiccation. b. It prevents transpiration. c. It prevents diffusion of gases. d. It prevents the transport of nutrients. e. It prevents the internal transport of water.
If placed in tap water, an animal cell will undergo lysis, whereas a plant cell will not. What accounts for this difference?
A) expulsion of water by the plant cell's central vacuole B) the relative impermeability of the plant cell membrane to water C) the relative impermeability of the plant cell wall to water D) the relative inelasticity and strength of the plant cell wall
The placenta protects the developing fetus from harmful substances like alcohol or drugs.
Answer the following statement true (T) or false (F)