- A fish is a kind of living thing
- A goldfish is a kind of fish
- So, a goldfish is a kind of living thing

- A goldfish is a kind of living thing
- A plant is a kind of living thing
- All living things are made of cells according to the cell theory
- Therefore, both the goldfish and the plant are made of cells

Therefore, both the goldfish and the plant are made of cells
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?
- A plant is a kind of living thing 
- A fish is a kind of living thing 
- All living things are made of cells according to the cell theory 
- A goldfish is a kind of fish