Sensory receptors show adaptation, when a constant stimulus is applied for a period of time. Pattern of adaptation are phasic (adapt rapidly to the stimulus)& tonic(adapt slowly to the stimulus)

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#Id: 5303

#Unit 7. System Physiology – Animal

Atrial systole 

Increase in atrial pressure is reflected back to the veins, it appears on the venous pulse record as the a wave.

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#Id: 4318

#Unit 11. Evolution and Behavior

Aristotle proposed that life arose from nonliving material if the material contained pneuma (“vital heat”).

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#Id: 8004

#Unit 10. Ecological Principles

Major component of ecological niche

1. Space Habitat

2. Eating habit

3. Environmental variant

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#Id: 5052

#Unit 3. Fundamental Processes

DnaA-ATP in an extended multimeric state promoted by the accessory protein DiaA, which stimulates cooperative binding of DnaA.

DnaA-ATP binds cooperatively to form a helical central core around which oriC DNA is wrapped.

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#Id: 484

#Unit 2. Cellular Organization

Heterochromatic regions, silenced genes, and gene-sparse regions of chromosomes are typically localized to the nuclear periphery.