Cells in organisms need food, air, and waste removal. how are these needs met? a. each cell must specialize in all of these functions. b. organs and tissues perform these functions for the cells. c. cells share their waste with other cells. d. cells get their food from the air and sunlight around them.

Which best describes this behavior? it is beneficial only to the males that do not fertilize eggs. it is beneficial only to the female workers that are not fertilized. it is beneficial to each one of the individual colony members. it is beneficial to the whole species, but not to all of the individual members.

Why does the earth spin slowly, not faster? is it possible to prove it scientifically? can you prove it with math?

Are the layers of rock above and below the coal older or younger?