The answer is D, photosynthesis and respiration.
—Evidence—
Oxygen is a byproduct of photosynthesis and, correspondingly, carbon dioxide the byproduct of respiration.
Oxygen gives our cells the ability to break down food in order to get the energy we need to survive. Although other animals may use different organs to breathe with, they all get oxygen into their bodies through respiration.
Parasite and Host, because the tapeworm can not live without the cells of the Human Intestine. It needs to live off of the Human making it, the host for the tapeworm.
Only when given OOB out of bed
Inferences cant be the answer because inference is the reason of why the observation happens
The type of response is inflammatory immune response. The scab became warm and red due to the widen of blood vessels and the heating up of the blood flow
