What accounts for the ability of vesicles to fuse with different membrane compartments in the cell?
A. the cell's cytoskeleton
B. the fluid nature of the phospholipid bilayer
C. peripheral membrane proteins
D. transport proteins
Answer Key: B
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Which of the following is the most likely explanation for a particular human population with a higher incidence of polydactyly (extra fingers/toes) than the human population as a whole?
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____ hormones (like thyroid-stimulating hormone or TSH) signal organs of the endocrine system to secrete new, additional hormones
Fill in the blank with the appropriate word.
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