The spinal cord is made up of
a.) the pons and the medulla.
b.) the brain and the brain stem.
c.) white and gray matter.
d.) gray matter only.

~fourth largest plate ~includes parts of the indian and atlantic oceans ~subducts below the eurasian plate on the west side ~ the arabian and somali plates form boundaries with it what is the name of the tectonic plate described above? a) african plate b) eurasian plate c) north american plate d) indo- australian plate

All ova contain sex chromosomes corresponding to: x y xx xy

Substances that can pass through cell membranes by diffusion include a. na ions. b. proteins c. glucose. d. oxygen.