Answer:
The squirrel, robin, and field mouse
Explanation:
A producer is what gets its energy directly from the sun (usually a plant) and the squirrel, robin, and field mouse all eat the plant seeds, which get energy from the sun .
Carbon dioxide is released. Here is a diagram...
Answer:
I believe it is cellulose, I'm not a 100% sure
The Nucleus is the control center, or brain of the cell.
Healthy Ecosystems I believe