Ecology

2. the diversity of genetic characteristics within a species
4. the changes in energy that occur between organisms within an ecosystem
8. an organism that have to hunt, gather and eat their food
12. the mass of living biological organisms in a given area or ecosystem
13. a graphical representation of the energy found within the trophic levels of an ecosystem.
14. an organism that primarily obtains food by the killing and consuming of other organisms
16. eats the secondary consumer
19. organisms that predators kill for food
20. step in a nutritive series, or food chain, of an ecosystem
21. an organism that makes their own food

1. the natural home or environment of a plant, animal or other organism
3. eats the producer
5. all the different kinds of life you'll find in one area
6. a living organism that shapes its environment
7. the population size that a certain environment can sustain, or carry
9. eats the primary consumer
10. anything that constrains a population's size and slows or stops it from growing
11. eats the tertiary consumer
15. a relationship between organisms that strive for the same resources in the same place
17. an organism that causes ecological or economic harm in a new environment where it is not native
18. a non-living part of an ecosystem that shapes its environment