Organisms obtain energy by breaking down food during a chemical reaction.   Which substances reacts with food in the chemical reaction?

Many kangaroo rats live in the sonoran desert of the southwestern united states. they have a variety of adaptations for living in the desert. under which circumstance would the kangaroo rats of the sonoran desert be most likely to develop new adaptations by natural selection?

An example of a trait that would be considered acquired and inherited is a. a cleft chin b. muscle tone c. scar tissue d. freckled skin

What is the process of a new plant growing from its seed into a seedling? primary growth fertilization pollination germination