Chapter 5 Science Glossary Terms

2. species that is experiencing a rapid population decline and is in danger of becoming extinct if the drop in numbers continues
4. the chemical in plants that traps energy from the sun and gives plants their green colour
6. an animal that eats other animals
8. organisms that get the energy they need by breaking down dead matter and waste products
10. an interaction between two organisms in which one of them benefits but the other one is not affected
12. breeding the process of mating one breed of plant or animal with another breed of that plant or animal (e.g. cattle)
14. regular burning to reduce the amount of fuel available for a fire
15. an animal that is eaten by a predator
17. the flow of energy from organism to organism in a series of feeding relationships
19. individuals that are exactly the same as each other

1. a method of controlling unwanted pests by using a natural predator or disease
3. the place where all life exists; consists of earth and its atmosphere
5. an interaction in which one type of organism (the parasite) lives on or in another type of organism (the host); the host is usually harmed or even killed
7. native vegetation that remains unchanged when surrounding areas have been changed by activities such as grazing or forestry
9. an organism able to manufacture its own food; plants are producer organisms
10. part of the stem, root or leaf that is able to grow into a new plant
11. an interaction between organisms in which both the organisms benefit from the relationship and neither is harmed
13. area along the banks of rivers and streams that is flooded when water levels are high
16. a number of food chains combined
18. raised bank built to prevent water reaching buildings