Answer:
I believe the answer is Chromosomes.
Explanation:
They use a internal pouch which is named swim bladder.
Explanation; Oxygen will enter a fish’s mouth, and passes through their gills. The oxygen will be taken and gets carried by hemoglobin through their bloodstream. Hemoglobin will take out some of the oxygen into their swim bladder. The amount of oxygen will show if they will sink or rise. Your question is how do they rise. If he goes up too much, the meaning of this is when the gas diffuses into their blood and out the gills.
Got this from a writing, but rephrased it.
The answer is B, DNA to RNA to protein
8. is more fertilizers as that is the thing ehich changes everything because without that nothing will change
9. is the colour of light or plant growth i am unsure sorry
