Sci 512

1. refers to the solid rocky part of the earth
5. The level at which something is examined or measured
6. The number of organisms living within a particular geographic region
8. flows through an ecosystem in only one direction.
10. a greenhouse gas, so it absorbs infrared energy, the longer wavelengths of the Sun’s reflected rays.
11. Features of the environment/habitat that are capable of interacting, that limit population growth, or in some way have an effect on the lifeforms that would or could live there.
13. occurs in many forms on Earth and is found throughout the environment. The element moves through organisms and then returns to the environment. When all this happens in balance the ecosystem remains in balance, too.
14. The number of things in some area at some scale

2. the total amount of water on Earth,including water in all its forms,
3. The amount of different species that live in a particular area or habitat
4. Mixture of gasses that surround the earth
7. The effects organisms have on each other when living together in the same community or habitat.
9. The relative quantities of things
12. cycles freely between trophic levels and between the ecosystem and the physical environment.