Cellular Respiration

Living cells require [blank_start]energy[blank_end] from outside sources.

Some animals, such as the giant panda, obtain energy by eating plants, and some animals feed on other organisms that [blank_start]eat plants.[blank_end]

Energy flows into an ecosystem as [blank_start]sunlight[blank_end] and leaves as [blank_start]heat.[blank_end]

Photosynthesis generates [blank_start]o2[blank_end] and [blank_start]organic[blank_end] molecules, which are used in cellular respiration.

Cells use [blank_start]chemical[blank_end] energy stored in organic molecules to regenerate ATP, which powers [blank_start]work[blank_end].

Energy is the movement of the object through space.

Label the picture of an Ecosystem.