The chief river of Egypt is the

The “land between the rivers” refers to

In the fifth century B.C.E., a revolt in Ionia triggered a war between Greece and __________

Medication used to treat bipolar illness:

The process of cell division:

Gland that is no bigger than a pea and is often called the “master glad” because it makes hormones that control several other endocrine glands:

Smal oval region on the retina near the optic disc:

Photoreceptor cell in the retina that transforms light energy into a nerve impulse, responsible for color and central vision:

Four small glands located on the dorsal aspect of the thyroid gland:

What do I mean when I say “derived traits define the clade, and ancestral traits do not”?