Question 30
Ecological AssociationsWhich of the following associations is an example of mutualism?
- A.Hydra viridis and zoochlorellae
- B.Human and lice
- C.Shark and Remora fish
- D.Bread and Rhizopus stolonifer
Show the answer and explanation
Answer: A (Hydra viridis and zoochlorellae)
Explanation
The green algae (zoochlorellae) living in Hydra viridis give it food and oxygen from photosynthesis, and the Hydra gives them shelter and carbon (IV) oxide. Both benefit.