Why is it advantageous that the sperm do not immediately reach the fallopian tubes?
a. The digestive enzymes in the acrosome of the ovum need time to mature, so that the sperm can penetrate the zona pellucida.
b. The digestive enzymes in the acrosome of the sperm need time to mature in the female reproductive tract, so they can penetrate the zona pellucida of the ovum.
c. Time is needed for protease enzymes to cleave proteins on the outer core of the ovum, creating a mature ovum containing a zona pellucida.
d. Time is needed for protease enzymes within the female reproductive tract to cleave proteins on the outer core of the sperm, creating a mature sperm that can penetrate the zona pellucida.
ANS: B
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