Positive regulation of a gene requires __.

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#Question id: 11927

#XL - S Microbiology

A biologist discovers an alga that is marine, multicellular, and lives at a depth reached only by blue light. This alga probably belongs to which group?

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#Question id: 11927

#XL - R Botany

A biologist discovers an alga that is marine, multicellular, and lives at a depth reached only by blue light. This alga probably belongs to which group?

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#Question id: 11938

#XL - T Zoology

Which of the following changes tends to increase peritubular capillary fluid reabsorption?

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#Question id: 11939

#XL - T Zoology

Which of the following would cause the greatest degree of hyperkalemia?

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#Question id: 11940

#XL - T Zoology

Which of the following is filtered most readily by the glomerular capillaries?

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#Question id: 11941

#XL - T Zoology

Under conditions of normal renal function, which of the following is true of the concentration of urea in tubular fluid at the end of the proximal tubule?