The theory that explains how large pieces of the earth’s crust move and change shapes
extinct
fossil
relative dating
plate tectonics
geologic time scale

Vessels draining the myocardium of the heart, open primarily ,into which chamber?

Wich is not standing in the way of astronomers getting a good view of different star

Where is having brightly colored feathers that attract mates most clearly an adaptation for a bird? a. a forest with dense vegetation b. a sandy beach beside an ocean c. a snowy tundra with little vegetation d. a swamp with many hawks that eat birds