Both add oxygen to the water. Both perform photosynthesis. Both are made up of cells. Both eat food.
I am hesitating between 4 options to answer the following question, which option should I choose?
Question: Charisma has a goldfish she keeps in a tank. She planted several underwater plants in the bottom of the tank. How are the goldfish and the plants in the tank similar?
Possibilities:
- Both add oxygen to the water.
- Both perform photosynthesis.
- Both are made up of cells.
- Both eat food.

Both are made up of cells.