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caroline12345 caroline12345
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7 years ago
During an acrosome reaction, the acrosome:a.
   detaches, allowing the sperm to penetrate the egg.
  b. releases enzymes that digest the outer layer of the egg.
  c. secretes calcium ions, which cause the sperm to fuse with the egg.
  d. releases bindin, which causes the sperm to bind to the egg.
  e. secretes a chemical that attracts the egg to the sperm.

Question 2

What is the correct sequence of sea urchin egg coverings, beginning at the outside and moving inward?
  a. granulosa cells, zona pellucida, plasma membrane
  b. zona pellucida, vitelline envelope, plasma membrane
  c. jelly coat, vitelline envelope, plasma membrane
  d. plasma membrane, jelly coat, zona pellucida
  e. vitelline envelope, jelly coat, plasma membrane
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VickyhungVickyhung
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caroline12345 Author
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7 years ago
Cheers!!
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7 years ago
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