After ovulation, the oocyte
A) waits passively for a sperm to penetrate.
B) releases negative ions that create an electrical gradient that all sperm swim toward.
C) releases chemotaxic signals to attract sperm to its location.
D) propels itself toward seminal fluid by calcium-dependent kinesis.
Correct Answer:
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Q1: The outer layer of the trophoblast that
Q3: The third through eighth weeks of development
Q4: The hormone that signals that fertilization and
Q5: The process by which a blastocyst embeds
Q6: Cleavage occurs during
A) the fetal period.
B) the
Q7: Implantation usually begins at about the end
Q8: Capacitation lasts several _ and involves removal
Q9: Sperm undergo a process of conditioning known
Q10: Cleavage involves a series of _ divisions
Q11: Which type of gamete remains viable for
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