bio 2

1. z the e, dark layer of the oceans below the photic zone where sunlight does not penetrate and no photosynthesis
4. Factor Any living part of the environment with which an organism might interact
6. boreal forests
8. Group of individuals of the same species that live in the same area
10. of organisms different regional climate communities
11. A group of similar organisms that can breed and produce fertile offspring
14. zone The portion of the marine biome that hallow enough for sunlight to penetrate.
15. Effect The process in which certain gases (carbon dioxide, methane, and water vapor) trap sunlight energy in Earth's atmosphere as heat
16. material formed from decaying leaves and other organic matter
18. Factor Physical, or non-living, factor that shapes an ecosystem
20. a layer of permanently frozen subsoil
21. Tiny organisms that float in the water
22. Scientific study of interactions among organisms and between organisms and their environment

2. All of the water (salt and fresh water in the form of liquid, ice, or vapor) above and below Earth's surface and in the atmosphere
3. Day-to-day conditions of the atmosphere, including temperature, precipitation, and other factors
5. dense leafy covering from tall trees
7. Thin layer of gases that surround Earth
9. Part of Earth in which life exists including land, water, and air or atmosphere
12. Assemblage of different populations that live together in a defined area
13. All the organisms that live in a place, together with their nonliving environment
15. All of the rock at and below Earth's surface
17. In the shade below the canopy, shorter trees and vines form a layer
19. Average year-to-year conditions of temperature and precipitation in an area over a long period of time