Organism an individual animal, plant, or single-celled life form.

A population  is a summation of all the organisms of the same group or species, which live in a particular geographical area, and have the capability of interbreeding

a group of people living in the same place or having a particular characteristic in common.

An ecosystem  is a community of living organisms (plants, animals and microbes) in conjunction with the nonliving components of their environment

Comment Stream

a year ago

although this is really good information, you did not do the required assignment that I gave you.