Answer: Mitochondria are present in the cells of all types of aerobic organisms like plants and animals, whereas Chloroplast is present in green plants and some algae, protists like Euglena.
Explanation:
The correct answer is B. Oxygen.
Oxygen, as a part of the atmosphere, also participates in UV protection, besides being necessary for breathing.
C. Eukaryotic heterotroph correctly describes animals, and fungus or bacterias would would be prokaryotic.
The answer is a. It’s the only one with a control group
