What is the purpose of the cell membrane?
1- to only be found in a plant cell.
2- to separate organelles.
3- to link multicellular organisms.
4- to provide a pathway for nutrients to move in the cell.

The table shows a pattern of exponents. what is the pattern as the exponents decrease?

Igor stravinsky tires sells approximately 3,760,000 car tires and 1,200,000 truck tires each year. about 47,000,000 care tires and 26,000,00 truck tires are sold each year in the united states. what is stravinsky's market share in each of these two markets (cars and trucks)?

Aman is 6 feet 3 inches tall. the top of his shadow touches a fire hydrant that is 13 feet 6 inches away. what is the angle of elevation from the base of the fire hydrant to the top of the man's head?