Question

Cellular respiration is a process in which animal cells use ____ taken in from the atmosphere.

1) carbon dioxide

2) hydrogen

3) oxygen

Answer 1

How does cellular respiration work in animals?

When an animal breathes, it takes in oxygen gas and releases carbon dioxide gas into the atmosphere. This carbon dioxide is a waste product produced by the animal's cells during cellular respiration. Cellular respiration occurs in the individual cells. Digested foods have chemical energy stored in them.

Step-by-step explanation:

Answer 2

1) carbon dioxide I think hope it helps