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.
The level of phospholipid organzation to arrange themselves into to parallel layers.
Answer:
Species X and species Z belong to the domain
Explanation:
Take antibiotics, see a doctor, take heed of surroundings
