The answer that makes most sense to me is D. We stopped needing to kill whales, yay! :P
The answer is D glycolysis
The supergroup unikonta includes a range of protists plus animals and fungi.
<span>it occurs during the gamete formation</span>
ADP is basically the dead battery form of ATP. It is lacking a phosphate group, and has a hydrogen instead. It can be 'recharged' to form ATP through specific occurrences in the cell such as the electron transport chain. ATP is the molecule that powers everything the cell does.