For a human zygote to become an embryo it must undergo

a) fertilization
b) recombination
c) meiotic divisions
d) mitotic división

D) mitotic división

A zygote is a diploid cell which forms after the fusion of the haploid male gamete (sperm) and female gamete (ovum) during fertilization. The human zygote goes through with the process of mitosis, in which each cell divides into two daughter cells.  The cell division continues for long and this gives rise to a multi-cellular embryo. These cells are called as totipotent cells because they have the ability to develop into specialized structure in a typically embryo.

i dont know but

explanation:

whoever your teacher is, deserves a raise for using pokemon as an example

one person pulls 90n one way and the other has 100n pulling the other way.

so the net force = 90 - 100 = -10n,

or the ans can be 10n if the picture shows -90n and 100n instead.