All the different types of organisms living in a certain areas?

All the populations living and interacting within a particular geographic area make up a biological (or biotic) community.

Explanation:

the living organisms in a community together with their non-living or abiotic environment make up an ecosystem

a axis of a graph is a color or shade so we can all go outside and have a party so we can eat   some grilled cheese sammiches and broccoli and have some ugly fun times

i don't know why i put this, i know its not the i was just bored : p

delete this answer while you can

b brown mice / white sand dunes