Ecology

1. photosynthetic bacteria that are prokaryotic organisms that can produce oxygen using photosynthesis
7. The base of an ecological pyramid representing the primary producers have less biomass or energy than the other trophic levels
11. the process when plants lose water vapor to the atmosphere
12. total mass of living organisms in a given area or ecosystem
14. relating to or capable of performing photosynthesis
15. the process when bacteria converts nitrate into gaseous nitrogen and releases it back to the atmosphere by removing bioavailable nitrogen from its environment
18. 1st organism to colonize a disturbed environment
20. organisms that cannot produce its own food an must eat other organisms to get energy

2. a community of living organisms interacting with their non-living physical environment in a particular area
3. microscopic single celled organisms that live in water
4. absorbing vitamins, minerals, and other chemicals from food as part of the nutrition of an organism
5. When an area of land with no soil gets populated by a group of species for the first time
6. an organism that obtains energy by oxidizing chemical compounds in its environments
8. organisms that creates its own food
9. when decomposing organisms break down organic nitrogen compounds from dead organisms into ammonia
10. eats producers
13. breaks down dead plants and animal matter
16. the different position of an organism in a food chain or web (producers, primary consumers, secondary consumers, tertiary consumers, and. detritivores)
17. the capacity to do work or cause change within a living organism
19. non-living components of an ecosystem