Heterotrophs, primary consumers, and herbivores..
A. Air temperature
The air temperature does not effect how producers get their source of energy. Soil moisture and available sunlight are important for photosynthesis regarding energy conversions.
Retina allows the eye to regulate how much lint can enter.
"The red blood cell<span> survives on average only 120 days. </span>Red cells<span> contain a special protein called hemoglobin, which helps carry oxygen from the lungs to the rest of the </span>body<span> and then returns carbon dioxide from the </span>body<span> to the lungs so it can be exhaled." - hematology.org</span>
