Answer:
Also know as the <u>skeletal</u> nervous system. The part of the <u>peripheral</u> nervous system that controls the glands and the muscles of the internal organs (such as the heart).
During the process of ossification, an existing tissue is replaced by bone.
C. The material for it is super expensive and sometimes fragile, which sucks, but it's true.
I looked it up and it should be D. Nerve cells :)
A variation is a reference to the differences or deviations, such as the structure and form, as for crossing over is the exchange of genetic material between the non-sister chromatids of the homologous chromosomes during meiosis.
