This is known as parasitism.
In biology, parasitism is a relationship between species, where one organism, the parasite, lives on or in another organism, the host, causing it some harm, and is adapted structurally to this way of life.
The gas particles will move faster because they are gaining kinetic energy
Answer:
The answer is basically that having nerve cells reproduce can do more harm than good. Each nerve cell has a specific place in our nervous system. ... Adding new nerve cells would mess up these very specific connections in a very complex system.
