Unit 8 Vocab Biology

2. The study of interactions among organisms and their environment
5. Diagram that shows the relative amounts of biomass energy, or number of individuals contained within each trophic level of a food chain
7. Organism that obtains energy by eating plant and animal remains or other dead matter
9. organism that breaks down organic matter into its chemical component to be recycled and used again
11. States that no 2 organisms can occupy the same niche in the same habitat at the same time
12. organism that uses energy from their environment to create their own food
14. A collection of all the ecosystems and biomes present on earth
16. The natural home or environment of an animal, plant, or other organism
18. All the organisms that live in a particular area and their nonliving environment
19. Group of ecosystem with the same climate and similar dominant or climate communities
20. close relationship between 2 species in which one benefits and the other is not affected

1. The biological influences or living factors that impact an organism within an ecosystem
3. The total amount of living tissue within a give ecosystems level
4. Organisms that obtain energy by eating only plants
6. Physical or nonliving factors that shape ecosystems
8. Organism that obtains energy by eating only other animals
10. Group of populations that live together in the same place at the same time
13. A single step or stage in a food chain or ecological pyramid
15. A collection of all the food chains in an ecosystem
17. Series of steps that show a single pathway of matter and energy from producer to top consumer