Animals and plants use oxidation to extract energy from food molecules. is this a true statement? justify your reasoning.

An animal or plant obtain energy form sugars or other organic molecules by allowing the carbon and hydrogen atoms in these molecules to become oxidized—to produce CO2 and H20 respectively—in process called cellular respiration. Plants use Photosynthesis, which uses the energy of sunlight to produce sugars and other organic molecules from the carbon atoms in CO2 in the atmosphere. The plants serve as food for animals, which uses O2 to oxidize food molecules, releasing the same carbon atoms in the form of CO2 back to the atmosphere. These processes are done by the oxidation of organic molecules to produce energy.

parasites can detrimentally affect their host, but also must not allow their host to die before they can complete their life cycle. some parasites have complex life cycles with many different hosts, and have had to find ways of persisting in many different environments during the change from one host to another. ectoparasites live outside the body of the host, and can more easily  disperse, but are  more exposed to predators, parasites, parasitoids. endoparasites live inside the body of the host, and are therefore protected from the outside environment. but they can be  attacked by the host's immune system. they have therefore developed  mechanisms for dispersal such as  complex life cycles.

thinking it would be d not too sure but i think it's right