Question

ochre sea stars make a sticky substance to help them hold onto the rocks. pacific blue mussels glue themselves to the rocks using structures called byssal threads. a black leather chiton sticks to a rock by creating suction with its strong muscular foot. black oystercatcher birds eat mussels and chitons. these birds are strong enough to pry animals off of the rocks. in a tide pool on the oregon coast, the pacific blue mussels, the black leather chitons, and the black oystercatchers make up which of the following? select all that apply. a population part of a community part of an ecosystem

Explanation:

A population consists of individuals of the same species. Here, we have multiple species (Pacific blue mussels, black leather chitons, black oystercatchers), so it's not a population. A community is all the different populations of organisms living in an area, and these species are part of the community in the tide - pool. An ecosystem includes all the living organisms (biotic factors) and non - living components (abiotic factors) in an area, and these species are part of the tide - pool ecosystem.

Answer:

B. part of a community
C. part of an ecosystem