Abiotic because <span>its pretty clear that a virus is not a living organism and its not dead since it never was alive so its <span>abiotic.</span></span>
<span>tripling protein intake. taking hormones duplicating those of puberty. putting a demand on muscles repeatedly</span>
Answer:
The most recent common ancestor of all currently living organisms is the last universal ancestor, which lived about 3.9 billion years ago. ... 6,331 groups of genes common to all living animals have been identified; these may have arisen from a single common ancestor that lived 650 million years ago in the Precambrian.
