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#Question id: 11664

Why are the renal artery and vein critical to the process of osmoregulation in vertebrates?

#Unit 7. System Physiology – Animal

The kidneys require constant and abnormally high oxygen supply to function.
The renal artery delivers blood with nitrogenous waste to the kidney and the renal vein brings blood with less nitrogenous wastes away from the kidneys.
The kidneys require higher than normal levels of hormones.
The renal artery and vein are the main pathways regulating how much is produced by the kidneys.

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#Question id: 7106

#Unit 5. Developmental Biology

In what genetic background could beta-catenin turn on target gene expression without Wnt protein?

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#Question id: 14696

#Unit 13. Methods in Biology

Urn A contains 6 red and 4 black balls and urn B contains 4 red and 6 black balls, one ball is drawn at random from urn A and placed in urn B. Then one ball drawn at random from urn B and placed in urn A. If one ball is now drawn from urn A, the probability that it is found to be red is

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#Question id: 19152

#Unit 13. Methods in Biology

In ion exchange chromatography The exhausted cation exchange column is regenerated by passing a solution of ____________

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#Question id: 28643

#Unit 2. Cellular Organization

helicases are loaded in___I___, when CDK activity is__II____?

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#Question id: 28469

#Unit 5. Developmental Biology

Which function is involved to the first differentiation event in mammalian development?