now i may just not understandthe question here but its probs D
food chain. it tells how different organism feed on in a linear way. if we mix more than 2 food chains it will become food web.
The correct answer is detailed structure inside the cell.
The main feature of compound light microscope is the light source which helps to see the objects more clearly. This microscope is usually used to see the detailed structure inside the cell. The cell organelles are clearly visible that are very minute in size and cannot be seen through naked eyes. This allows us to study the features of the cell more accurately and precisely.
Answer:
A. Antibiotic
Explanation:
I think it is A. because it changes between the experimental group and the control group.