Which of the following scenarios is representative of mutualism?
a.
barnacles living on whales
b.
bees pollinating flowers
c.
birds feeding on insects stirred up by grazing animals
d.
mosses living on tree trunks

I think the correct answer from the choices listed above is option A. Barnacles living on whales is a scenario that represents mutualism. This is because both of the organisms benefit from their existence. Hope this answers the question. Have a nice day.

It allows water to resist freezing and thawing cycle.