Environment & Variation

2. Organisms that break down the dead remains of other organisms
4. A series of steps in which organisms transfer energy by eating and being eaten
7. an animal or plant that spend the winter in a dormant state.
8. Animal with a backbone
9. A system of interlocking and interdependent food chains
10. A group of living organisms consisting of similar individuals and are capable of interbreeding
14. An organism that makes its own food
15. Any difference between individuals of the same species
18. An animal that hunts for prey
20. An organism that only eats meat
21. Animal without a backbone
22. Place where an organism lives

1. A characteristic that improves an individual's ability to survive and reproduce in a particular environment.
3. An organism that eats both plants and meat
5. An organism that only eats plants
6. The process of grouping things based on their similarities
11. The surroundings of an organism
12. animals Animals that are active at night
13. Smaller areas in a habitat
14. An animal that is hunted and killed for food
16. All the different species in habitat
17. To move from one place to another
19. A grouping system that divides organisms into 6 major categories