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ecosystems 3rd grade

An example of a slow change
Example of a change made by people.
When the number of a group of animals becomes too large.
The place where an animal or plant naturally lives and grows.
Over time the changes in an ecosystem cancel each other out.
When the numbers of an animal are low and they are at risk of becoming extinct.
Groups of living things and the environment they live in.
Made up of all of the populations that live in the same area.
When an animal no longer exists, all of them have died out.
An organism must _______ to live in an environment.
An example of a rapid change.
A group of the same species living in the same place at the same time.