This document discusses how environmental changes can affect living organisms. It defines a population as a group of the same kind of organisms living in the same place, and a community as all the populations that live together in an ecosystem. It asks the reader to identify the number of populations and communities described.

1. Environment
changes
How can changes in an
environment affect living
organisms?

2. Population
and
community

3. Population
 A group of organisms of the same kind
living in the same place.

4. Community
 All of the populations that live in an
ecosystem

6. How many populations can you see?
And how many communities?