High levels of CD25 was responsible for the suppression of diabetes. 

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#Id: 7258

#Unit 6. System Physiology – Plant

The rate of CO2 fixation increases with time in the first few minutes after the onset of illumination—a time lag called the induction period

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#Id: 7816

#Unit 10. Ecological Principles

Animals use behavior to survive in cold temperatures

Curling up into a ball to reduce the exposed surface area. 

Penguins may huddle together to conserve heat. 

Bears hibernate, spending the winter in a deep sleep.

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#Id: 2353

#Unit 5. Developmental Biology

If the middle slice is too narrow, there is no discernible morphogen gradient within it, and regeneration is abnormal.

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#Id: 4618

#Unit 13. Methods in Biology

 If the antibody preparation is polyclonal and has a range of affinities, Scatchard plot yields a curved line whose slope is constantly changing. The average affinity constant K0 can be calculated by determining the value of Ka when half of the binding sites are occupied (i.e., when r  1 in this example). In this graph, antiserum #3 has a higher affinity (K0  2.4  108) than antiserum #4 (K0  1.25  108)

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#Id: 8488

#Unit 1. Molecules and their Interaction Relevant to Biology