Brian Walker (1992) proposed the Redundancy hypothesis Species that play the same roles in a community can compensate for each other if some are lost under particular conditions

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#Id: 1518

#Unit 2. Cellular Organization

In MTOCs, 

The (−) end of the microtubule stays anchored in the MTOC while the (+) end extends away from it.

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#Id: 5762

#Unit 10. Ecological Principles

More diverse communities have a lower value of DBP than less-diverse communities.

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#Id: 5323

#Unit 7. System Physiology – Animal

 Isovolumetric Ventricular Relaxation

When left ventricular pressure falls below aortic pressure, the aortic valve closes.

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#Id: 7134

#Unit 6. System Physiology – Plant

Brassinosteroids are synthesized from the plant sterol campesterol, which is similar in structure to cholesterol. Members of the cytochrome P450 monooxygenase (CYP) enzyme family that are associated with the ER catalyze most of the reactions in the brassinosteroid biosynthesis pathway.

Mevalonic acid serves as a precursor of the triterpenoid pathway and is condensed and transformed to 2,3-oxidosqualene which further undergoes modification to form major plant sterols like sitosterols and campesterols.

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#Id: 8566

#Unit 1. Molecules and their Interaction Relevant to Biology

Under these conditions, the reactions have an identical dissociation constant Ki , again called the inhibitor constant.