Please answer all the questions.

1		The primitive atmosphere would have consisted mostly of water vapor, nitrogen gas, and carbon dioxide.
			A)	True
			B)	False
2		As the Earth cooled, gases were washed into the primitive oceans by enormous amounts of rain.
			A)	True
			B)	False
3		In the RNA--first hypothesis of early cell formation, RNA acts as both an enzyme and a DNA-like structure.
			A)	True
			B)	False
4		Biological evolution produced the first cells, then chemical evolution began.
			A)	True
			B)	False
5		A trait that makes an organism more suited to its environment is called an adaptation.
			A)	True
			B)	False
6		Adaptations to different environments explain the diversity of life.
			A)	True
			B)	False
7		Structures that are similar because they were inherited from a common ancestor are called vestigial structures.
			A)	True
			B)	False
8		Living things share similar characteristics because they are descended from a common ancestor and they are diverse because they are adapted to different environments.
			A)	True
			B)	False
9		The absolute age of a fossil can be determined from the stratum it is found in.
			A)	True
			B)	False
10		The fossil record supports common descent because it shows who is related to whom in the past.
			A)	True
			B)	False
11		Darwin believed that humans evolved from apes.
			A)	True
			B)	False
12		Bipedalism might have developed while hominids still lived in trees because it made it easier to forage for food and could have prevented heat stroke.
			A)	True
			B)	False
13		Neutral genetic changes do not occur at a constant rate and are thus not useful for comparing the relatedness of two groups.
			A)	True
			B)	False
14		Hominids today have a flatter face and more pronounced chin and a larger brain than apes.
			A)	True
			B)	False
15		The Neanderthal brain was slightly larger than the brain of modern humans.
			A)	True
			B)	False
16		DNA sequences differ more between individuals of the same ethnicity than between different ethnicities.
			A)	True
			B)	False