The answer is A.
Why: The heart is part of an organism, so that doesn't exactly count. Soil is not alive, and neither is clay. Therefore, Bacteria must be it. Bacteria is a living thing, and can function by itself.
Explanation:
<h3>EVOLUTION CONNECTION Genes important in the embryonic. development of animals, such as homeobox-containing genes, have been relatively well conserved during evolution; that is, ... other genes.</h3>
The nucleus is a membrane enclosed organelle found in most eukaryotic cells,which stores the genetic material .
Answer:
it's going to be called nucleotides
