Apparently it is ATP as deduced from the last line of text and no model to refer to.
Mitochondria is the powerhouse of the cell. Only thing I remember from middle school science
Both lie in 1st column of the Periodic Table. (contain the members of the Alkali Metals. Members within a family, column, or elements tend to have similar<span> chemical properties.</span>
Distantly related organisms may be similar if they live in Similar environments
When your body temperature rises because of an infection, it's called a fever<span>. </span>Fevers<span> are caused by chemicals called pyrogens flowing in the bloodstream. Pyrogens make their way to the hypothalamus in the brain, which is in charge of regulating body temperature.</span>
