Answer:
Between one-third and one-half of all fertilized eggs never fully implant. A pregnancy is considered to be established only after implantation is complete
Answer:
Explanation:
biology of your talking about life evolution but all if your talking about mankind evolution and technology
Answer:
The populations become adapted to different environments and eventually become so different that they cannot interbreed to produce fertile offspring.
Speciation is the evolution of one species into two different kinds, and when they become isolated, that is the final step, since they cannot interbreed any longer.
A fruit<span> is the seed bearing structure in flowering plants </span>angiosperms form<span> from the ovary after flowering. </span>Fruits<span> are the means by which </span>angiosperms<span> disseminate seeds. </span>
Answer: Fossil fuels are made up of dead plant life example trees, bushes, etc., and when burned they release carbon in the air