Answer:
Implantation is what leads an egg to pregnancy. If implantation doesn’t occur then, the fertilized egg comes out with period blood. After fertilization, the egg undergoes series of divisions called cleavage. The cells remain enveloped in the protective egg membrane. This membrane layer hardens after entry of sperm.
<em>hope this helps :)</em>
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A.the intensity of the activity
Honestly, it’s corona time but it’s going good.
Can you do me a favor and mark me Brainliest please?
