Answer:
In animals, oxygen combines with food in the cells to produce energy for daily activity and then gives off carbon. The carbon combines with oxygen to form carbon dioxide (CO2) and is released back into the atmosphere as a waste product when animals breathe and exhale.
Answer:
They use less metabolic energy and they help the animal move faster.
I think your answer should be B. an organism. Hope this helps. =^-^=
Explanation:
<h3>1. Kharif Cr.ops </h3><h3>3. Kharif cr.op and Ra.bi Crop</h3><h3>4. Cultiva.tor </h3><h3>5. Ra.bi cro.ps </h3><h3>6. Earthwor.m and Mic.robes</h3><h3>7. Fall.ow lan.d. </h3><h3>8. H.oe a.nd Plo.ugh</h3><h3>9. Fertilizers and Manures</h3><h3>11. Rice</h3><h3 />
