They only vary only in their "Lipid Groups"
Hope this helped you!:)
Answer:
A
Explanation:
A) adaptations that cause a disadvantage to the species are selected against and do not become common in the population.
The answer is B.
Im pretty sure water is important for some organisms.
They form memory cells in which those cells remember the same pathogen for faster antibody production, in aid of future infections.
Cells depend on glucose for energy.
