Please answer all questions

1		The primitive atmosphere would have consisted mostly of water vapor, nitrogen gas, and carbon dioxide.
			A)	True
			B)	False
2		A trait that makes an organism more suited to its environment is called an adaptation.
			A)	True
			B)	False
3		Structures that are similar because they were inherited from a common ancestor are called vestigial structures.
			A)	True
			B)	False
4		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
5		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
6		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
7		The Neanderthal brain was slightly larger than the brain of modern humans.
			A)	True
			B)	False