Your body has a two-line defence system against pathogens (germs) that make you sick. Pathogens include bacteria<span>, viruses, toxins, </span>parasites<span> and </span><span>fungiA type of organism that isn’t a plant or an animal. Includes mushrooms, slimes, moulds and yeasts. Generally act as decomposers to break down material.</span><span>.</span>
Chemical energy may be released during a chemical reaction, often in the form of heat; such reactions are called exothermic. Reactions that require an input of heat to proceed may store some of that energy as chemical energy in newly formed bonds.
<span>Phosphorus cycles between living things and the environment, particularly the soil. This is the case with many other substances as well such as carbon. The cycling occurs due to the action of organisms which uptake and release phosphorus into the soil. Phosphorus exists in animals in many forms, particularly in the ATP molecule. When the animal dies, its remains are decomposed and the constituent ions are released into the soil, after which they are taken up by plants. Animals consuming these plants gain the phosphorus again, and the cycle continues.</span>
<span>Exocytosis, on the other hand, is Endocytosis
in reverse. The cell expels substances from the cell by way of a
vesicle and then fuses with the membrane. ... Additionally, during both Pinocytosis and Exocytosis, liquid vesicles known as Caveolae are used</span>