Pardon? I don’t understand the question
A, it stands for Avoid
R recognize
A avoid
I isolate
N notify
Answer:
see the answer below
Explanation:
<em>The cells of the brain and spinal cord are irreplaceable because these cells do not undergo cell divisions like some other cells of the body.</em>
<u>Through cell division of the vegetative cells, damaged cells of the body are replaced by new cells. The cells of the brain and spinal cords however are special cells that will not divide under ordinary conditions. Hence, when there is any form of damage, there are no new cells to replace the damaged cells.</u>
D because if the species was to be removed from an ecosystem, everything that needed that species as food, or the species ould have to adapt to the foods available in the new ecosystem they live in. Hope I helped, and let me know if you are still not 100% sure about the answer, and I'll try to clarify what I said.