What do the polar bears, reindeer, and shrubs that live in a single area make up?
organism
population
community
ecosystem

During a hot day, warm and moist air rises and cools in the atmosphere. which even would occur next on such a day? a. condensed droplets would gather to become water vapor. b. water vapor would condense into tiny droplets. c. water droplets would evaporate to form rain and snow.

How many chromosomes are in a gold fish?

Compare the composition of the moon's surface with the composition of the earth's surface.