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18 Cards in this Set
- Front
- Back
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What is a biome?
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A group of ecosystems that have the same climate and similar dominant communities.(pg64,98)
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What is a canopy?
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A canopy is a dense covering formed by the leafy tops of tall rain trees.(p 100)
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What is a deciduous tree?
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A tree that sheds its leaves during a particular season each year(p 100)
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What is humus?
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Humus is material formed from decaying leaves and other organic matter(p 103)
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What is permafrost?
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Permafrost is a layer of permanently frozen subsoil in the tundra(p 104)
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What is a microclimate?
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A climate within a small area that differs signigicantly from the climate of the surrounding area.(p 98)
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What is understory?
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It is a layer in a rain forest formed by shorter trees and vines.(p100)
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What is a coniferous tree?
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Trees that produce seed-bearing cones and have thin leaves shaped like needles.(p103)
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The Role of Climate
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Carbon dioxide, methane, water vapor, and a few other atmospheric gases trap heat energy and maintain Earth's temperature range
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What are the three major climate zones?
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As a result of differences in latitude and thus the angle of heating, Earth has three main climate zones: polar, temperate, and tropical.
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What Shapes an Ecosystem?
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Together, biotic and abiotic factors determine the survival and growth of an organism and the productivity of the ecosystem in which the organism lives.
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What can affect an ecosystem?
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Comunity interactionsm such as competition, predation, and various forms of symbiosis, can powerfully affect and ecosystem.
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What is predation?
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Predation is interaction in which one organism captures and feeds on another organism(p93)
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Explain how ecosystems are constantly changing.
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Ecosystems are constantly changing in response to natural and human disturbances. As a ecosystem changes, older inhabitants gradually die out and new organisms move in, causing further changes in the community.
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What are the world's major land biomes?
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Tropical rain forest, tropical dry forest, tropical savanna.
Temperate grassland, desert, terperate forest, northwestern coniferous forest, boreal forest and tundra. |
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What determines an Aquatic Ecosystem?
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Aquatic ecosystems are determined primarily by the depth, flow, temperature, and chemistry of the overlying water.
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What are the two main types of freshwater ecosystems?
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The two main types are, flowing-water ecosystems and standing-water ecosystems
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What are divisions of ocean?
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Division of the photic and aphotic zones and marine biologists also divide it into zones based on the depth and distance from shore: the intertidal zone, coastal ocean, and the open coean.
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