Most insects have small holes in the exoskeleton called which open and close to regulate air flow.

Grasses--> mice--> cats--> coyotes suppose 10,000 units of energy are available at the level of the grasses. what is the total number of energy units lost by the time energy reaches the coyote?

Which label identifies the part of the atp molecule that changes when energy is released in the cells of all living things

The term facultative anaerobe refers to an organism that