Answer:
A process or system that is used to produce a particular result.
It's the endocrine system. The endocrine system deals with hormones and glands, such as the pituary gland. Hope this helps!
During the cortical reaction, enzymes are released from vesicles in the oocyte. <span>The cortical reaction is a reaction for preventing polyspermy, the fusion of multiple sperm with one egg. It is a process which occurs during fertilization by the release of cortical granules from the egg. Cortical granules contain components which establish a permanent barrier to sperm entry.</span>
