Answer:
(a) Tracheids and Vessels
The fish would die out for the reason of there is no source of food.
After the action potential passes through an axon, gated potassium channels open and allows potassium ions to flow out.
The answer is C.)<span> increase in available sunlight and decrease in available carbon dioxide
GOOD LOCK!</span>
I thinks it's Genetics. I might be wrong tho