Term
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Definition
| nonliving-chemical and physical factors- in a biome (sunlight, soil, light, water) |
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Term
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Definition
| all the organisms (living) parts of a biome (plants and animals) |
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Term
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Definition
| group of individuals of the same species living in a particular geographic area |
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Definition
| assembly of all the populations of organisms living in an area |
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Term
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Definition
| all the abiotic factors and organisms that exist in a certain area |
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Definition
| Earth-sum of all the planet's ecosystems |
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Definition
| prevailing weather conditions at a location |
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Term
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Definition
| major types of ecosystems categorized on the predominant fauna and flora, temperature and moisture |
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Term
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Definition
| regions between 23.5 north and south latitute |
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Term
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Definition
| biannual mixing of water due to sinking cold water and rising warm water |
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Definition
| region in water ecosystems were sufficient light is available for photosynthesis |
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Term
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Definition
| region in aquatic ecosystems where light is insufficient for photosynthesis to occur |
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Term
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Definition
| narrow region of rapid temperature change in lakes |
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Term
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Definition
| bottom or substrate of an aquatic ecosystem |
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Term
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Definition
| organisms that live in the bottom of an aquatic ecosystem |
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Term
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Definition
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Term
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Definition
| shallow, well lit water close to shore |
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Term
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Definition
| well lit open surface water |
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Term
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Definition
| aphotic, deeper region of an aquatic ecosytem |
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Term
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Definition
| deep, nutrient poor with phytoplankton that aren't very productive |
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Term
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Definition
| shallow lakes with high nutrient content, phytoplankton are very productive |
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Term
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Definition
| moderate amounts of nutrients and phytoplankton productivity |
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Term
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Definition
| area covered with water that supports aquatic plants |
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Definition
| area where a freshwater body of water merges with the saltwater ocean |
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Definition
| zone where land meets water |
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Definition
| shallow regions over the continental shelf |
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Definition
| past the continental shelf, reaches large depths |
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Term
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Definition
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Term
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Definition
| organisms in deep benthic communities adapted to continuous cold and high pressure |
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Definition
| upper layer of trees, ofter in rain forest that can prevent light penetration |
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Term
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Definition
| layer of ground the remains permanently frozen, in the tundra |
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Term
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Definition
| organisms that use mechanisms to maintain homeostasis in the face of environmental fluctuations in temperature, moisture, light intensity, and concentration of chemicals |
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Term
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Definition
| organisms that allow some conditions within their bodies to vary with external changes |
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Term
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Definition
| each organism has a limited amount of energy that can be allocated for obtaining nutrients, escaping predators, coping with environmental changes, growth, and reproduction |
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Term
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Definition
| dense, spiny evergreen shrubs; midlatitude coastal regions. mild,rainy winters and long, hot dry summers(s. California) |
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