Answer:
A
Explanation:
because cell theory states that living things are composed of one or more cells, that the cells is the basic unit of life, and that cells arise from existing cells.
Answer:
mitosis
Explanation:
Mitosis is when a cell divides.
After the macrophage fails the Helper T Cell stimulates the B cells if pathogen is extracellular and Cytotoxic T Cells if the pathogen is intracellular. Once the pathogen is killed the B Cells create Memory B Cells and the Killer T Cells create memory T Cells.
Wave height that should be it;)
No.
This is because mutations not only help a species survive in certain conditions, but also allows diversity within a population. For instance, a bug species can develop a mutation to bug spray, allowing it to survive through its prey or killers. Therefore, ultimately benefiting and helping the species.
Hope this helps!