Answer:
Normally, the iron group in myoglobin has an oxidation state of 2+. However, when oxygen binds to the iron, it gets oxidized to an oxidation state of 3+. This allows the oxygen that is binded to have a negative charge, which stabilizes it. Myoglobin's affinity for oxygen is higher than hemoglobin.
I think it would be coal and oil.they are energy sources.
HETEROTROPHS
Explanation:
Autotrophs are any organisms that are capable of producing their own food. For most, this is achieved by using light energy, water and carbon dioxide. Heterotrophs cannot produce they have to absorb.
Active transport is the process by which dissolved molecules move across a cell membrane from a lower to a higher concentration. In active transport, particles move against the concentration gradient - and therefore require an input of energy from the cell.
This is something that you have to do yourself but i suggest doing some research ^-^
