Question

Which interaction is an example of commensalism?

O A. Insects helping plants reproduce while eating the nectar in their
flowers
O B. Bacteria living inside a human's stomach and making the person ill
C. Birds building nests in the branches of trees
O D. Mosquitoes eating the blood of cows and passing on a disease
SUB

Answer 1

C

Step-by-step explanation:

Commensalism is where one organism benefits while the other is neither harmed nor benefited.

A - Both parties benefit

B - Bacteria benefit, the human is harmed

C - Birds benefit, the tree neither

D - Mosquitoes benefit, cow is harmed

Answer 2

C. The birds benefit from the shelter of the tree branches without harming the trees