I believe the correct answer from the choices listed above is the third option. It is oxygen that is a necessary reactant for cellular respiration to occur. Cellular respiration, in a sense, is breaking down sugar in the presence of oxygen. Hope this answers the question.
Answer:
The answers are a) Cancer cells treated with the chemical have a lower survival rate than cells that are not treated and d) This chemical will be useful for treating all types of cancer.
Explanation:
Since the research finds that cancer cells have a lower survival rate when exposed to a particular species of fungus. In addition to this new chemical compound could be implemented as a cancer drug.
There would be increase in oxytocin in one's cerebrospinal fluid in the brain causing a major role in the mother's behavior. Breastfeeding would release the oxytocin from the mother's brain. It allows one's baby to get milk from the breasts causing one's uterus to return back to it's normal size after birth. It also nourishes love, nurture and bond between the mother and child.