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18 Cards in this Set
- Front
- Back
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what is photoautotroph? |
a group of organism that can convert water and carbon dioxide to glucose (food) |
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what is chemoautotrophs?? |
autotrophs that get their energy from inorganics substances --- such as hydrogen sulfide -HSO4 |
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give example of chemoautotrophs? |
-bacteria -deep sea worms |
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where the chemoautotrophs live? |
-deep in ocean, where no sunlight |
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what is heterotroph? |
-does't make their own food -consume other organism for food |
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list 5 type of heterotroph? |
-decomposer -herbivor -omnivor -carnivor -scavengers/detritivores |
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what is scavengers/ detritivores give example |
1. animal that feed on tissues of dead animal - shrimp -crows -vultures |
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what is decomposer - give example of decomposer |
organisms that absorb dead material and break it down into simple nutirent or fertilizer |
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what is trophic level? |
energy move from one organisms to another when its eaten -each step in this transfer of energy called trophic level. |
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what is biomass? |
total mass of organic matter at each trophic lev. is called biomass |
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how much energy tranfer of energy from one trophic lev. to another? - |
10% |
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what is food chain |
energy flow from one trophic lev. to another
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each food chain must have -- |
1. producer 2. primary consumer 3. secondary consumer 4. decomposer (optional) |
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a food web must have |
1.most organisms eat more than 1 organims 2. more complex than food chain |
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name 3 type of sysmbiosis |
1. commensalism- one benefits other just fine 2.mutualism-both benefits 3. parasitism - one harm |
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give example of comensalism? |
-barnacles and whale |
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give example of mutualism |
-birds and rhino back
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give example of parasitism |
ticks on dog |
