Periodontist is the term you're looking for
ATP adenosine triphosphate is the energy molicule that makes the muscle contract when it is present.
Answer:
Viruses are tinier than bacteria. In fact, the largest virus is smaller than the smallest bacterium. All viruses have is a protein coat and a core of genetic material, either RNA or DNA. Unlike bacteria, viruses can't survive without a host.
So life itself is an emergent, complex state, but it is made from the same fundamental, physical building blocks that constitute a virus. Approached from this perspective, viruses, though not fully alive, may be thought of as being more than inert matter: they verge on life.
Explanation:
Gene mutations provide new traits, those that are useful evolve and strive into new species'. Those that are not so useful, eventually die off
