Mutualism.
Hope this helps (:
-Payshence xoxo
Your answer is B.) Heterozygous, since the prefix 'hetero' usually means separate or different. Hope this helps.
Depending on what you've been learning in bio so far, the glucose is used in a process called glycolysis, which basically turns the glucose into ATP (Energy) which the cell can use.
The Red Blood Corpuscles in the blood take up the oxygen to supply it to different cells in the body. They do not have a nucleus to carry much oxygen and to go through the thinnest capillaries and narrow spaces. They do not have mitochondria so that they do not use up the oxygen or energy for themselves.
