There are more species in tropical areas than in places more distant from the equator. This is probably a result of

a) more predators and parasites

b) more dispersed annual solar radiation compared to the poles

c) more frequent ecological disturbances over a longer time span

d) a longer time frame without disturbances for evolution and speciation

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#Question id: 3904

#XL - Q Biochemistry

Which statement about RNA polymerase is false?

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#Question id: 2654

#XL - T Zoology

Regulation of the lac operon can be envisioned as regulation of enzyme synthesis by its

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#Question id: 10344

#XL - Q Biochemistry

Some of the following caracteristics of Nitrite reductase, which one of the is incorrect?

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#Question id: 46

#XL - Q Biochemistry

The three-dimensional structure of a protein is determined primarily by:

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#Question id: 15679

#XL - S Microbiology

Dry heat sterilization the items to be sterilized are placed in an oven at