I am sorry I can only answer 7 for you.
Hope it helps
7= By replacing the neurons lost from a injury with new cells.
Explanation:
for 1 it has to be false cause cutting tree ain't good.
for 2 I'm not sure, maybe it's TRUE..
Answer:
Either A or C but A is a bit more true
Explanation:
You can measure one on option C but you can measure both
on answer A. Hope this helps you out.