Answer:
Cellular Respiration
Explanation:
In cellular respiration, animals take in O2 (oxygen) and exhale CO2 (carbon dioxide).
Answer:genetic variation helps ensure that not all organisms are the same.
Explanation:
<span>crushing a can.
melting an ice cube.
boiling water.
mixing sand and water.
breaking a glass.dissolving sugar and water
.shredding paper.
<span>chopping wood.</span></span>
C Improper signaling by the right-left axis during development
