Many Amphibian Species Release Their Sperm and Eggs Directly into a Watery

Multiple Choice

Many amphibian species release their sperm and eggs directly into a watery environment.All of the following mechanisms might ensure species-specific fertilization in these populations EXCEPT

A) acrosomal complexes in sperm.
B) complex coverings of the egg.
C) specific protein binding between sperm and egg.
D) fertilization envelopes.
E) blocking of non-species-specific mRNA sequences.