B. Consumers produce Co2 for which plants need to allow photosynthesis to turn back into oxygen.
Answer:
The circulatory system, also known as the cardiovascular system, is a simple loop which starts, and ends, with your heart. It is a closed system, meaning blood does not enter or leave the system during its journey from your heart to your body and back again.
Explanation:
Store food but i believe Hibernate
Elbows and knees would be the answer
The carbon atom can go to the plants on the Land.
