The proportion of occupied patches will stabilize over time to =1− (x/m)

x - Extinction rate 

m - Rate of movement between patches

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#Id: 5776

#Unit 10. Ecological Principles

Community Similarity

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#Id: 8532

#Unit 2. Cellular Organization

Catastrophe 

The change from growth to shrinkage

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#Id: 730

#Unit 3. Fundamental Processes

Replication in dam- E. coli depends on its state of methylation.

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#Id: 2488

#Unit 13. Methods in Biology

Low-percentage acrylamide gels are also used to separate DNA. Gels of between 10 and 20% acrylamide are used in techniques such as SDS–gel electrophoresis, where the smaller pore size now introduces a sieving effect that contributes to the separation of proteins according to their size. 

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#Id: 1239

#Unit 7. System Physiology – Animal

ACTH (corticotropin) controls the secretion of cortisol by the activation of adenylyl cyclase via Galpha s.