After fertilization, a zygote rapidly divides to produce small, genetically identical cells known as:
A) blastomeres. B) pronuclei. C) centromeres. D) trophoblasts.
Answer: A
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Match the term to its definition.
1. the sum of all the body's chemical reactions 2. large molecules synthesized from smaller ones 3. large molecules broken into smaller ones A. metabolism B. catabolism C. anabolism
Muscles that produce precise, delicate movements have fewer muscle fibers in their motor units compared to muscles made for powerful movements
a. True b. False Indicate whether the statement is true or false
Glucagon ____________________.
lowers blood sugar raises blood sugar lowers glucocorticoids increases glycogen production None of the choices are correct
Which of these cells would most likely have the largest number of mitochondria?
A. Skeletal muscle cells B. Skin cells C. Red blood cells D. Adipocytes E. Bone cells