The Central Nervous System is made up of the brain and the spinal cord.
Answer:
C
Explanation:
All of the other answers would lead to the oxygen not being stable.
The answer is E I believe
I believe it’s attachment pili aka fimbriae.
Tissues
Tissues are somewhat more complex units than cells. By definition, a tissue is an organization of a great many similar cells with varying amounts and kinds of nonliving, intercellular substance between them.
