Ecology Part 1

2. energy is transferred between organisms in food webs from producers to consumers
4. a detailed description of the species within a community and their relationships with each other
6. the mass or weight of living tissue
9. a graphical representation of the energy found within the trophic levels of an ecosystem
11. a geographic area where plants, animals, and other organisms, as well as weather and landscape, work together to form a bubble of life
12. when animals are exposed to the same stimuli repeatedly, and eventually stop responding to that stimulus
14. a species' average population size in a particular habitat
18. an organism that breaks down dead organic material
19. an inborn impulse or motivation to action typically performed in response to specific external stimuli
20. the variety of all living things and their interactions

1. An animal that naturally preys on others
3. the range of different inherited traits within a species.
5. only about 10% of energy stored as biomass in a trophic level is passed from one level to the next
7. a living organism that shapes its environment
8. a non living part of an ecosystem that shapes its environment
10. Make their own food, which creates energy for them to grow
13. the position of an organism in the food chain
15. an introduced, nonnative organism that begins to spread or expand its range from the site of its original introduction and that has the potential to cause harm to the environment
16. the direct or indirect interaction of organisms that leads to a change in fitness when the organisms share the same resource
17. an animal that is caught and killed by another for food