Polar bears are adapted to stay warm by growing thick fur. These organisms most likely live in a A.) tropical rain forest
B.) tundra
C.) desert
D.) temperate rain forest

Which best explains how this maneuver unblock a person's airway?

Which is not a characteristic of bacteria? a. they are unicellular. b. they are prokaryotic. c. they are the smallest form of life on earth. d. they are multicellular.

Which one is an advantage of external fertilization a. the offspring are genetically identical to the parents b. more eggs can be fertilzed at one time c. more sperm can be released at one time d. more protection is available for developing plz