In the United States, the cool polar air masses and the warm tropical air masses come together to form a

A. blizzard.

. B. tornado.

C. hurricane.

D. thunderstorm.

If a pharmacy chain sold 75 million 500mg tablets of aspirin, how many tons does this represent?

How do organisms get energy from food? Inside an organism's cells, food molecules are broken down and rearranged through chemical reactions.

Does autotrophs or heterotrophs use photosynthesis

The percentage of essential body fat (fat that is crucial for normal body function) is approximately:

a biologist discovers a new unicellular organism and classifies it as a prokaryote. the cell is very small, contains a cell membrane, a cytoplasm, dna in a nucleus, and no other cell organelles.

An organism that is killed and eaten by another is what

Why is a shell considered to be biotic? because it is found in the biosphere because it was alive because it came from something living because it is not living

Why are pathogens harmful

The crystal size of an igneous rock is described as its

Which of the following are dwarf planets? Check all that apply