Answer:
Sperm-egg interaction
Explanation:
The formation of fertilization envelope is well-studied on the model system- sea urchin. It has been shown that, the fertilization envelope is formed after the initial sperm-egg interaction from the egg surface vitelline envelope and the paracrystalline protein fraction which is derived from cortical granules. Secretion from cortical granules, prevents polyspermy.
Yes it is necessary for the production of apt in your cells because apt needs oxygen to form correctly.
Answer:
Nucleus
Explanation:
The nucleus is defined as a large membrane-enclosed structure that contains the cell's genetic material in the form of DNA in eukaryotes. It is the control center of the cell and dictates what all of the other organelles do.
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