There are no choices.. but maybe try exercising more!
Eggs are, but I'm not sure about the rest.
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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Evidence that you have accomplished a goal is: measurable
3) goals should be: realistic
Blaming your sister is an example of: projection
Yeah. It has about the same risk as any other sex