Which describes the function of the human sperm cell’s structure?

The sperm’s tail propels it so it can swim through the reproductive tract toward the egg. A sperm cell has 23 chromosomes, not all 46, and it usually survives in the female reproductive tract for only a few days, not two weeks. The head contains an acrosome with enzymes that help the sperm enter the egg; it does not contain a basic substance that counteracts vaginal acidity.

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