Unit 2 Review 1
Terms in this set (17)
A phenomenon in which algae inside corals die, causing the corals to turn white.
photic zone (ocean)
the zone that receives enough light to allow photosynthesis to occur
Process by which some organisms, such as certain bacteria, use chemical energy to produce carbohydrates
littoral zone (lake)
a region of water where sunlight does not reach, below the limnetic zone in very deep lakes
A lake with a low level of productivity as a result of low amounts of nutrients in the water
A biome prevailing at approximately 30° N and 30° S, with hot temperatures, extremely dry conditions, and sparse vegetation.
Forests in which rainfall is abundant - more that 200 cm (80 in) per year - and temperatures are warm or hot year-round
An area of grassland with scattered trees and bushes
a vast treeless plain in the arctic regions between the ice cap and the tree line
rain shadow effect
Low precipitation on the far side (leeward side) of a mountain when prevailing winds flow up and over a high mountain or range of high mountains. This creates semiarid and arid conditions on the leeward side of a high mountain range.
El Nino-Southern Oscillation (ENSO)
Trade winds weaken & warm surface water moves toward South America. Diminished fisheries off South America, drought in western Pacific, increased precipitation in southwestern North America, fewer Atlantic hurricanes*
The movement of deep, cold, and nutrient-rich water to the surface
Intertropical Convergence Zone (ITCZ)
An area of Earth that receives the most intense sunlight; where the ascending branches of the two Hadley cells converge.
a frequently windless area near the Equator
An organism that breaks down wastes and dead organisms
Net Primary Productivity (NPP)
the amount of energy that plants pass on to the community of herbivores in an ecosystem.
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