Question

By what mechanism does a diploid animal grow after fertilization?

mitosis
binary fission
isogamous fertilization
meiosis

Answer 1

it is mitosis because after fertilization the groth of somatic cells stars

Answer 2

Mitosis. After fertilization, the cells in the zygote divide rapidly (by mitosis) to form a morula, which becomes the embryo after approximately five days. The fetus is present about eight weeks after the fertilization takes place.