Science Project

4. anything that constrains a population's size and slows or stops it from growing
7. a species' average population size in a particular habitat
9. any kind of green plant
10. animals that are killed and eaten by other animals.
11. the position of an organism in the food chain
12. an inborn impulse or motivation to action typically performed in response to specific external stimuli.
15. a graphical representation of the energy found within the trophic levels of an ecosystem.
19. a linear sequence of organisms through which nutrients and energy pass as one organism eats another.
20. renewable energy from plants and animals

1. all the different kinds of life you'll find in one area
2. what make up ecosystems.
3. an organism that helps define an entire ecosystem.
5. each level in an ecosystem only gives 10% of its energy to the levels above it.
6. describes the changes in energy (a state function) that occur between organisms within an ecosystem
8. all of the food chains in an ecosystem
13. organism on the food chain that depends on autotrophs (producers) or other consumers for food, nutrition, and energy. decomposer.
14. an organism that consumes all or part of the body of another—living or recently killed—organism, which is its prey.
16. a geographic area where plants, animals, and other organisms, as well as weather and landscape, work together to form a bubble of life
17. when animals are exposed to the same stimuli repeatedly, and eventually stop responding to that stimulus.
18. organism that breaks down dead organic material;