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Ecosystems and Communities
Terms in this set (33)
day-to-day condition of Earth's atmosphere at a
particular time and place
average, year-after-year conditions of temperature and precipitation in a particular region
small differences within a climate
atmosphere has a blanket of CO2,
methane and water vapor that trap heat and keep Earth suitable for life
willingness to accept feelings, habits, or beliefs that are different from your own
where organism lives (address)
how an organism lives (occupation)
any necessity of life, such as water, nutrients, light, food, or space
Competitive exclusion principle
no 2 species can share same niche in
same habitat at same time
one organism captures and feeds on another
Herbivores affect size and distribution of plant population in a community
changes in this species cause MAJOR changes in
A close relationship between two species that benefits at least one of the species.
A relationship between two species in which both species benefit
A relationship in which one organism lives on or inside of another organism and harms it.
one species benefits and the other is neither helped nor harmed
ecosystems change in response to natural and human disturbances; series of predictable changes in which old inhabitants die and
new organisms move in
succession that occurs before soil exists (after
volcanic eruptions, bare rock)
succession that occurs after a disturbance that
removes organisms but leaves soil (plowing, forest fire)
The first species to populate an area
Dense covering formed by the leafy tops of tall rain forest trees
A layer of shorter plants that grow in the shade of a forest canopy.
Shedding or losing foliage at the end of the growing season
trees that produce seed-bearing cones and most have leaves shaped like needles
Dark-colored organic material in soil.
permanently frozen ground
Portion of the marine biome that is shallow enough for sunlight to penetrate.
Deeper water that never receives sunlight.
organisms that live attached to or near the ocean floor
Tiny organisms that float in the water
A land area that is covered with a shallow layer of water during some or all of the year
A habitat in which the fresh water of a river meets the salt water of the ocean.
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