Answer:
Autotroph or producers
Explanation:
An organism that produces its own food is a autotroph
Human muscle cells also use fermentation. This occurs when muscle cells cannot get oxygen fast enough to meet their energy needs through aerobic respiration. There are two types of fermentation: lactic acid fermentation and alcoholic fermentation. Both types of fermentation are described below.
We live in the troposphere, which is where we get our air from
