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6 Cards in this Set
- Front
- Back
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Community
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all organisms that live and interact in the same area at the same time
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community succession
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changes in community composition over time
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Primary succession
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occurs in areas where there is little or no soil and no living organisms have become established.
examples- lava flows, volcanic islands, river deltas |
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Secondary succession
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a disturbance restarts succession at a different int than that which occurs with primary succession
Ex. ecosystems, forest fires, weather and human activites |
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Pseudomonas and Achrombacter
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common bacteria that digest butterfat milk and give milk a putrid smell
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Lactobacillus and Streptococcus
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They ferment lactose to lactic acid and acetic acid
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