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15 Cards in this Set
- Front
- Back
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What is a species?
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group of organisms so similar to one another that they can breed and their offspring are fertile
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What is the defintion of population?
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it's a group of individuals that belong to the same species and live in the same area
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What are communities?
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assemblages of different population that live together in a particular place
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What's a biome?
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group of ecosystems that have the same climate and similar dominate communities
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What's a detritvore?
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an organism that feeds on plants and dead matter
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What is the difference between a food web and food chain?
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-how energy is transfered
-relationship between all the food webs |
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What is a ecological pyramid?
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a diagram that shows the relative amounts of energy of matter
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What is biomass? a trophic level?
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-the total amount of living tissue within a given trophic level
-each step in a food chain or foodweb |
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What's a biochemical cycle?
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when elements,chemical compounds, and other forms of matter are passed from one organism and biome to another
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What is transpiration?
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when water enters the atmosphere by evaporating from leaves of plants
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What is a nutrient? a limiting nutrient?
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-all chemical substances that an organism needs to subtain life
-when an ecosystem is limited by a single nutrient that is scares of cycles slowly |
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What's a nitrogen fixation? a denitification?
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-the process of convertion nitrogen gas into ammonia
-when nitrates turns into nitrogen gas |
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What is primaiary productivity ?
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the rate which organic matter is created by producers
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What is a algae bloom?
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an immediate increase in the amount of algae and other producers that reslult from a large input of limtion nutrient
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What are the first three levels of consumers ?
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primary-secondary-tertiary
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