An enzyme's specificity is caused by the ______ of the active site.

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#Question id: 19615

#XL - P Chemistry

The reaction rate constant can be defined as the rate of reaction when each reactant’s concentration is ___________.

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#Question id: 3255

#XL - T Zoology

The body weight of offspring of bird species is range between 12 gm to 18 gm. In a laboratory experiment, species was subjected to selection pressure having influence on the offspring body weight. After many generations of experimental selection pressure, the body weight range between 16 gm to 24 gm. Which of the following natural selection operate on this species?

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#Question id: 5749

#XL - R Botany

Type of mutation in which a pyrimidine is substituted for a purine

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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: 11292

#XL - R Botany

In an pond ecosystem the _____ is always greater than the _____ .

(a) number of primary producers . . . number of secondary consumers

(b) biomass of secondary consumers . . . biomass of primary consumer

(c) assimilation efficiency of primary consumers . . . assimilation efficiency of secondary consumers

(d) biomass of primary producers . . . biomass of primary consumers