Question

Which of the following is an example of symbiotic mutualism?

the sporozoan Plasmodium feeding on a human cell.
two paramecia exchanging genetic material.
the zooflagellate Giardia reproducing in a human.
a zooflagellate digesting food in a termite’s intestine.

Answer 1

I would believe the answer to be two paramecia exchanging genetic material because that would create genetic variation making it beneficial to both