Multiple Choice
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.
Correct Answer:

Verified
Correct Answer:
Verified
Q2: The first breath of the neonate is
Q9: The eggs of birds and reptiles are
Q25: Figure 51-1 <img src="https://d2lvgg3v3hfg70.cloudfront.net/TBX8677/.jpg" alt="Figure 51-1
Q26: Figure 51-4 . <img src="https://d2lvgg3v3hfg70.cloudfront.net/TBX8677/.jpg" alt="Figure 51-4
Q29: Which of the following occurs during gastrulation?<br>A)
Q33: What is cellular aging and what causes
Q34: Match the stage of embryonic development with
Q98: Dizygotic twins are also called fraternal twins.
Q103: A human embryo is capable of movement
Q114: The trophoblast secretes _, which signals the