Chapter 5 Definitions

3. Characteristics that help an organism to survive in its environment.
5. Times of the year when fires are most likely to occur.
6. a scientist who studies the growing of plants.
8. An interaction between two organisms in which one of them benefits but the other one is not affected.
9. The process of mating one breed of plant or animal with another breed of that plant or animal
10. The chemical in plants that traps energy from the Sun and gives plants their green colour.
11. Non-living factors in the environment.
15. native vegetation that remains unchanged when surrounding areas have been changed by activities such as grazing or forestry.
17. by using a natural predator or disease
18. Part of the stem, root or leaf that is able to grow into a new plant
19. A consumer that eats only other animals.
20. species that are close to the extinction and very small numbers remain.

1. Organisms that get the energy they need by breaking down dead matter and waste products.
2. A method of controlling unwanted
4. Organisms that must eat other organisms to get the energy and nutrients they need; animals are consumer organisms.
7. Living factors in the environment.
10. Individuals that are exactly the same as each other.
12. The place where all life exists; consists of earth and its atmosphere.
13. The term to describe different types of living things.
14. Organisms that have the same food source and live in the same habitat.
16. Raised bank built to prevent water reaching buildings.