A. Corona radiata b. Cell membrane c. Zona pellucida d. A &c
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d.) is your best answer.
See: Human fertilization
http://en.wikipedia.org/wiki/Human_ferti…
Best regards
See: Human fertilization
http://en.wikipedia.org/wiki/Human_ferti…
Best regards
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My initial thought was "jelly coat", but since that's not an answer, C.
Ahh, and apparently a, also. My bad. Haha. Give him the best answer. :) Well played!
Ahh, and apparently a, also. My bad. Haha. Give him the best answer. :) Well played!