10.3 Biology Gradualism vs Punctual Equilibrium

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Last updated 12:52 PM on 3/7/23
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6 Terms

1
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gradualism speciation
speciation due to divergence of isolated populations can be gradual
2
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punctual equilibrium speciation
speciation can occur abruptly
3
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gradualism change in environment
if environment is only changing slowly over time, change would be slow
4
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punctual equilibrium change in environment
if environmental change is drastic and puts intense selective pressure on organisms (drought and finches on daphne major)
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gradualism mutation
if mutation only gives slight advantage, change would be slow
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punctual equilibrium mutation
if mutation causes a drastic change (polypolidy)