I believe it is A (Adenine)
You're correct.
Just make the last one OO
Ans
Explanation:
Because the air is denser and at night the wind blows from land to water
Emperor penguins need lungs to breathe. In penguin lungs, air never stops. ... Once the air goes farther into the trachea it splits into two different directions into both lungs. To get the oxygen into the blood cells, it must come "within small distance of the penguin blood cells".
