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19 Cards in this Set
- Front
- Back
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Who inspired Darwin?
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alfred Wallace
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What was Darwins first work called?
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On the orgin of species
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variation as difference amoung individuals of a species?
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natural variation
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variation is present in?
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nature, crops, livestock
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What did Darwin experiment with?
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finches
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what is ecological succession?
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predictable change over time
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Where does primary succession occur?
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occurs on surfaces without soil, or volcanoes
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What is secondary succession?
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disturbance without removing soil
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autotrophs
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make there own food
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what is the main energy source for life on earth
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sunlight
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If energy is caputured through chemical energy they are ____ to the flow of energy through the biosphere.
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essential
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photosynthesis uses what?
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solar energy
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CO2+H20---C6H1206+02
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formual
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most common photsythetic bacteria=
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cyan bacteria
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what uses life without light, use chemical energy to produce carbohydrates
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chemosynthsis
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what is artifical selections
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term that allows nature to provide the vacitation they found useful
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biomass is determined in
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weight
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pyramid of energy is measured in
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calories or jaules
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what is decent with modification
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over time, natural selection produces organisms with differen structures, niches, and habitats
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