Witch is an' embryonic germ layer that gives rise to the muscular skeletal circulatory systems of a human?

a) epidermis
b) endoderm
c) ectoderm
d) mesoderm
e) none of the above

49 points to whoever gets it

not: both offer magnification to the atomic level.

the answer is z.

the human body has five levels of organization. level 1: cells. cells are the basic units of life and form the first level of organization. cells in the human body have specific functions. examples include nerve cells, blood cells, liver cells, and so on.