Ecosystems

2. This word describes the need for organisms to continue to live.
4. These are the things that organisms need to grow.
6. A word that describes a safe place for animals away from danger and bad weather.
7. To take in air through the nose and mouth and into the lungs.
11. This word means a source of power to do something.
13. This kind of organism only eats plants.
15. This kind of organism eats both plants and animals.
16. These are like lakes but much smaller.
17. This word means all living things, big and small.
20. This is a method of putting things into groups.
21. A process by which plants can make their own energy.
24. This kind of organism only eats meat.
25. This word means to make more of a species by having offspring, or babies.

1. A word for all of the same species living in a particular area.
3. This word means to have an effect on one another.
4. This word describes things that are not alive.
5. This word means 'to need' something.
6. This word is for a group of organisms that are so similar the can have babies together.
8. A word for all of the populations of organisms living in the same area.
9. This word means a place that provides all the things an organism needs to survive.
10. A place with a hot temperature and wet climate.
12. This kind of organism can make it's own food .
14. This is a type of consumer that breaks down dead things to make nutrients for the soil.
18. The top layer of earth which plants use to grow.
19. The world of land, sea and air that we live in.
22. It's a gas in the air that all plants and animals need to grow.
23. This kind of organism needs to eat other organisms to survive.