Cattle egrets hitch a ride on domestic cows and eat insects that are stirred up by their activity. what term describes this relationship?

Ans.

Biological  interactions include different types of interactions between organisms that reside together in a community.

Cattle egrets show interaction with domestic cows and feed on the insects present in them. The cattle egrets get food from the cows, while there is no benefit or harm to the cows. This type of biological relationship is known as commensalism, in which one organism, out of interacting organisms, get benefit, while other organism neither harmed or benefit.  

Thus, the term that describes this relationship is 'commensalism.'

igneous rocks which formed by the crystallization of magma at the surface of the earth called extrusive rocks. they are characterized by fine-grained textures because the rapid cooling at or near the surface did not provide enough time for large crystals to grow.