In the nucleus of their cells (found within the genes that are there, with the genes being carried on the chromsomes present there).
Average kinetic energy is directly proportional to temperature, so when kinetic energy decreases so does temperature and when kinetic energy increases so does temperature.
Blood vessels keeps clots from sticking as long as their endothelium is intact and healthy.
Cells make up the smallest bits of every living thing. Everything that contributes to a living thing being alive comes from cells, making it the fundamental part of life.
