click below
click below
Normal Size Small Size show me how
Chapter 21 Ecosystem
Question | Answer |
---|---|
biodiversity | the number of different species that live within a particular ecosystem |
biome | geographic areas with similar climates and ecosystems |
canopy | the upper parts of the trees in a tropical rain forest |
climax communnity | a community that has reached the end stage of succession; a system in balance |
coniferous | trees that bear cones; pine tress |
coral reef | an ecosystem formed from shells secreted by corals |
deciduous | “falling off” |
desert | the driest biome on Earth; has dunes and thin sandy oil |
desertification | removing vegetation from areas that receive very little rain |
ecosystem | all the living and non living components of a certain area |
estuary | an extremely fertile area where a river empties into an ocean |
grassland | a biome ideal for growing crops and raising cattle |
intertidal zone | the part of the shore that is underwater at high tide |
microhabitat | a very small habitat such as a clump of grass |
permafrost | permanently frozen soil of the tundra region |
pioneer species | organisms that begin an area’s soil-building process; first organisms in an area |
population | A particular section, group, or type of people or animals living in an area or country |
primary succession | succession that begins in an area without soil |
salinity | the measurement of the amount of salt dissolved in water |
savanna | grassland biome of Africa |
secondary succession | succession that begins in an area with soil |
succession | normal, gradual changes that occur in the types of species that live in an area |
sustainability | the capacity to endure |
taiga | world’s largest biome; long, cold winters, evergreen trees |
temperate deciduous forest | biome with four discernable distinct seasons |
temperate rain forest | 200cm-400cm rain; forests with trees and needle like leaves |
tropical rain forest | most biologically diverse biome; receives up to 600 cm of rain |
tundra | cold, dry, treeless biome with permanently frozen soil |
wetland | biome that is wet most or all of the year |