Why pollination is considered to be the most important mutualisms

When listening the levels of orginization in orginisims from the smallest to most complex , which level is just below organs in complexity

Which statement is the best summary of the model? a-a series of aerobic and anaerobic reactions take place in cells b- the sun's energy moves through trophic levels in a food chain c-light energy is converted into stored chemical energy plants.d- food molecules are broken down in the cells if living things.

The term facultative anaerobe refers to an organism that