The correct answer is meiosis. This is because a zygote is a 2n diploid cell caused by human fertilization witch is meiosis. This shows that the correct answer is meiosis. There are two things needed witch are the two gametes. These two gametes are called the egg(female) and the sperm(male).
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Starfish has a endoskeleton
a coral has a exoskeleton
sponge has neither
