Multiple Choice
A human blastomere is
A) an embryonic cell that is much smaller than the ovum.
B) an embryonic structure that includes a fluid-filled cavity.
C) that part of the acrosome that opens the egg's membrane.
D) a component of the zona pellucida.
E) a cell that contains a (degenerating) second polar body.
Correct Answer:

Verified
Correct Answer:
Verified
Q20: A reproductive difference between sea urchins and
Q21: The primitive streak in a bird is
Q22: When you slice up a pie that
Q23: In humans, identical twins are possible because<br>A)
Q24: Two primary factors in shaping the polarity
Q26: As cleavage continues during frog development, the
Q27: A sea urchin zygote undergoes its first
Q28: The vertebrate ectoderm is the origin of
Q29: Contact of a sea urchin egg with
Q30: The earliest developmental stage among these choices