Would like to know . . . pls

[AFUA]

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Would someone please be gracious to put me out of my inqusitiveness(aka misery, if studying for the DAT) by telling me what the infamous sea urchin question is? Did a search, couldn't locate it.
Thanks.

 

[KHANSAHAAB]

What is the purpose of the fertilization membrane in sea urchins after fertilzation. Answer: to prevent fertilization by more than one sperm.

 

[DDS:)]

Explainations: After sperm enters the nucleus, there's this cortical reaction, cortical granules fuse with the egg membrane, this separates the vitelline layer from the plasma membrane and prevents polyspermy.

 

[AFUA]

Explainations: After sperm enters the nucleus, there's this cortical reaction, cortical granules fuse with the egg membrane, this separates the vitelline layer from the plasma membrane and prevents polyspermy.

Thank you.