To answer, that the answer would be photosynthesis, Photosynthesis<span> is a process used by plants and other organisms to convert light energy into chemical energy that can later be released to fuel the organisms' activities (energy transformation).</span>
Oxygen and glucose are needed for cellular respiration
The protein inside (a) red blood cells that carries oxygen to cells and carbon dioxide to the lungs is (b) hemoglobin. Hemoglobin is made up of four symmetrical subunits and four heme groups. Iron associated with the heme binds oxygen.
Black squirrels have a survival advantage over gray squirrels
Answer: they absorb photons from sunlight.
Explanation: