100-150 words Structure and Function:
Compare how membrane structures in the loop of Henle and collecting duct of the
mammalian kidney enable water to be recovered from filtrate in the process of
osmoregulation.

How do you date a sample of rock that you suspect as being one of the earliest on earth

All eukaryotic cells contain small bodies called

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