The embryo's bones, muscles, and circulatory system are formed by cells in its :

The embryo's bones, muscles, and circulatory system are formed by cells in its
 
  A) ectoderm.
  B) amnioderm.
  C) mesoderm.
  D) endoderm.

Question 2

The embryo's skin, nerves, and sensory organs are formed by cells in its
 
  A) ectoderm.
  B) amnioderm.
  C) mesoderm.
  D) endoderm.

Question 3

The embryo's digestive system, lungs, and glands are formed by cells in its
 
  A) ectoderm.
  B) pachyderm.
  C) mesoderm.
  D) endoderm.

Question 4

Neurogenesis is
 
  A) a normal process in which nerve cells form.
  B) a degenerative neural problem in some embryos.
  C) the beginning of damage to the fetal brain due to alcohol use by the mother.
  D) the result of cocaine use during pregnancy.