Adaptation: A characteristic that helps an organism to survive in its environment. Invasive Species: A plant or animal that has been introduced into an ecosystem (accidentally or on purpose) and may cause harm to other species in the ecosystem. Characteri

4. Freshwater fish that have eight fins and are part of the salmon family.
5. A characteristic that helps an organism to survive in its environment.
7. A place or environment where a plant or animal makes its home.
9. A change in the environment caused by human activities or natural ecological processes.
11. A plant or animal that has been introduced into an ecosystem (accidentally or on purpose) and may cause harm to other species in the ecosystem.
13. How an organism experiences it’s environment.
14. Classification of related organisms that share common characteristics and are capable of interbreeding.
15. A protective outer covering on a fish’s body.
16. A measure of the characteristics of water –how it looks, feels, smells and what else is mixed into it that we can’t sense. This includes water’s temperature, colour, dissolved oxygen, dissolved metals and acidity.
17. A plant or animal species that is placed into a habitat that it isn’t naturally found, either accidentally or on purpose.
18. An animal that eats other animals for energy.

1. A trait, feature or behavior of a plant, animal, person or group that describes it.
2. The interactions of plants and animals, showing the transfer of energy between species that allow all living things in an ecosystem to survive.
3. A linear sequence of organisms where nutrients and energy are transferred from one organism to the other.
6. A plant or animal that naturally lives in a given area or habitat.
8. A community of interacting organisms and their environment.
10. Organs that allow animals, such as fish, to breathe underwater.
12. An animal that lives underwater and does not have a backbone or spine.