Option (a) has a greater chance of being the answer — the respiratory system does take in Oxygen to break down glucose into Carbon dioxide and water vapor, releasing energy.
Answer:
I think your on track with C.
Explanation:
So your doing pretty good with C, but don't comment on my answer next time to look at another & another for me to solve for you. Because;
1. It's annoying.
2. I can't carry you like a baby through every question of your test, it's cheating.
Blank 1: Inner membrane of the Mitochondria
Blank 2: matrix of the mitochondria
Blank 3: their own nucleus
Blank 4: DNA
Hope this helps.
True, a lot of cultivated fields use fertilizers that can be harmful to fish
