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Chapter 11 Science

Terms in this set (17)

biome
A region with a certain climate and certain forms of vegetation. It is mostly the climate--temperature and precipitation--in an area that determines its ____.
desert, rain forest, grassland, deciduous forest, boreal forest, and tundra
The six major biomes are:
desert
An area that receives less than 25 centimeters of rain per year.
canopy
Trees in the rain forest form several distinct layers. The tall trees form a leafy roof called the _____.
understory
Trees in the rain forest form several distict layers. Below the canopy, a second layer of shorter trees and vines forms an ______.
grassland
An area that is populated mostly by grasses and other nonwoody plants. This area mainly receives 25-75 centimeters of rain each year.
savanna
Grasslands that are closer to the equator than prairies are known as _____, which receive as much as 120 centimeters of rain per year. Scattered shrubs and small trees grow here, along with grass.
deciduous trees
Trees that shed their leaves and grow new ones each year.
coniferous trees
Most of the trees in the boreal forest are _____ _____, which are trees that produce their seeds in cones and have leaves shaped like needles.
tundra
An extremely cold and dry biome. It receives as much rain as a desert. Most of the soil is frozen all year.
permafrost
Permanently frozen soil found in the tundra climate region.
estuary
Where the fresh water of a river meets the salt water of the ocean.
intertidal zone
Between the highest high-tide line and the lowest low-tide line.
neritic zone
Below the low-tide line is this. It is the shallow region that extends over the continental shelf.
kelp forests
These grow in neritic waters where the bottom is rocky. They can be found off the California coast.
coral reefs
These are created by colonies of tiny coral animals.
plankton
Tiny organisms that float in the water.
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