<span>Many sexually active american adolescents fail to avoid pregnancy because they are not educated on contraceptive methods. </span>
<u>Answer:</u>
The cell differentiation is necessary for the survival of multi-cellular organisms because at the beginning all the organisms start from a single cell called the zygote. This zygote undergoes mitosis and forms many uniform cells that do not have any specific function.
The differentiation of these cells is required for the development of specific organs and organ systems from this single cell.Cell differentiation is an essential process that gives a specific function to the cells of the body.
The group that includes gorillas, chimpanzees, bonobos, and humans is called the ⇒ hominoids.
The group that includes humans and their direct ancestors is called the ⇒ hominids.
Elements cannot be broken down to similar substances.
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