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S10 CH 34 Part 2 The Biosphere
The Biosphere - Key Terms
21
Biology
10th Grade
01/26/2009

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Term
photic zone
Definition
The shallow water close to shore and the upper zone of water away from the shore. Light is available here for photosynthesis.
Term
estuaries
Definition
Streams and rivers merge with ocean water in these areas.
Term
pelagic zone
Definition
Open water above the ocean floor
Term
tropical rainforest
Definition
This biome occurs near the equator where temperatures are warm year-around.
Term
desert
Definition
Land areas recieving less than 30 centimeters of rain per year.
Term
biomes
Definition
The major types of terrestrial ecosystems that cover large regions of Earth.
Term
neritic zone
Definition
The area of the ocean from the low-tide line out to the edge of the continental shelf.
Term
permafrost
Definition
Permanently frozen subsoil
Term
savanna
Definition
Grasslands with scattered trees. Grasses grow rapidly, providing food for many grazing animals.
Term
coniferiuos forest
Definition
This biome is characterized by towering cone-bearing evergreen trees such as pine, spruce, fir and hemlock.
Term
temparate grasslands
Definition
This biome is characterized by deep, nutrient-rich soil that supports a variey of grass species and other plants.
Term
temparate deciduous forest
Definition
This biome is characterized by dense stands of deciuous trees that drop their leave each year.
Term
hydrothermal vents
Definition
Spots on the ocean floor where hot gases and minerals escape from the Earth's interior into the water.
Term
chaparral
Definition
This is a temperate coastal biome dominated by dense evergreen shrubs. The area aroundthe Mediterranean Sea is this kind of biome.
Term
zoo plankton
Definition
Microscopic animals. "animal wander"
Term
intertidal zone
Definition
The area of shore between the high tide and low-tide lines.
Term
aphotic zone
Definition
The deep, murky areas of a lake, where light levels are too low to support photosynthesis.
Term
oceantic zone
Definition
The vast open ocean from the edge of the continental shelf outward.
Term
tundra
Definition
Bitterly cold temperatures and high winds characterize this biome
Term
benthic zone
Definition
The bottom of any aquatic ecosystem.
Term
phytoplankton
Definition
Microscopic algae and cyanobacteria that carry out phtosynthesis, live in the photic zone, along with water plants.
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