During the process of fertilization, which step happens first?
AThe sperm s nucleus enters the egg cell.
BEnzymes break down the protective layer of the egg cell membrane.
CA sperm attaches to a binding site on the egg cell membrane.
DThe cell membrane of the egg cell changes
AThe sperm s nucleus enters the egg cell.
BEnzymes break down the protective layer of the egg cell membrane.
CA sperm attaches to a binding site on the egg cell membrane.
DThe cell membrane of the egg cell changes