Ch 16 Vocab Review

1. Bacteria and fungi
5. After passing through a plant, water moves into the atmosphere by evaporating through leaves
9. process of combining nitrogen with hydrogen to form ammonia.
10. pathway that forms when a substance enters living organisms such as trees from the atmosphere
11. A somewhat regular progression of species replacement
13. One of the steps in a food chain or food pyramid
14. Animals that eat plants or other primary producers
15. The many different species that live together in a habitat
17. The variety of organisms, their genetic differences, and the communities and ecosystems in which they occur
18. Animals that eat other animals
19. Animals that eat plants and animals
22. Living organisms in a habitat
24. Water retained beneath the surface of the Earth
25. Succession that occurs where life has not existed before
27. Study of the interactions of living organisms with one another and with their physical environment

2. A diagram in which each trophic level is represented by a block
3. Include worms, fungi and bacterial decomposers
4. first organisms to live in a new habitat where soil is present. (small, fast-growing plants)
6. path of energy through the trophic levels of an ecosystem
7. All other organisms in an ecosystem that consume plants or organisms to obtain energy to build their molecules.
8. The physical aspects of a habitat (non-living)
12. The rate at which organic material is produced by photosynthetic organisms in an ecosystem
16. place where a particular population of a species lives
20. Succession that occurs in areas where there has been previous growth
21. dry weight of tissue and other organic matter found in a specific ecosystem
23. Complicated, interconnected group of food chains
25. Organisms that first capture energy
26. Consists of a community and all the physical aspects of its habitat