Science Vocabulary pt.2

2. evaporation of water from plants.
7. an area of land that doesn't receive more then 25 centimeters of precipitation a year, and this land is very dry.
8. all of the animal life present in a particular region or time.
10. a large, perennial accumulation of crystalline ice, snow, rock, sediment, and often liquid water that originates on land and moves down slope under the influence of its own weight and gravity.
11. an organism that mostly eats meat or flesh of animals.
12. the act of protecting something from loss, injury, or danger.
14. number of organisms of the same species that live in a particular geographic area at the same time.
17. the process in which NH2 groups are converted into ammonia or ammonium as an end product.
18. the process by which food is made by bacteria or other living things using chemicals as the energy source, typically in the absence of sunlight.
19. an organism that can produce its own food using light, water, carbon dioxide, or other chemicals.
20. discontinuous layer of water at or near Earth’s surface.

1. microscopic marine algae
3. the oceanic layer extending from 200 to 1000 meters below the surface
4. mixture of gases that surrounds the Earth.
5. an organism that mostly feeds on plants.
6. organism that can feed on both plant and animal sources.
9. any step in a nutritive series, or food chain, of an ecosystem.
13. the process of absorption of vitamins, minerals, and other chemicals from food as part of the nutrition of an organism.
15. the process of helping an ecosystem recover from damage, degradation, or destruction.
16. an organism that creates its own food or energy.