Ecologist has proposed following explanation to lead biodiversity at tropic.

a) Higher productivity in the tropics allows for more species

b)  Environments are more stable and predictable in the tropics, with fairly constant temperatures and rainfall levels year-round

c) Predators and pathogens limit competition in the tropics, which allows more species to coexist

d) High evolutionary speed at tropic than temperate

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#Question id: 3047

#XL - S Microbiology

A rapidly growing bacterial species such as E. coli exhibits a typical phase of growth cycle in liquid nutrient broth. If a bacterial culture has starting density 1000 cells/ml in log phase and after four hours cell density is 4000 cells/ml.  What is specific growth rate per hour? 

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#Question id: 31419

#XL - S Microbiology

Twitching motility in bacteria is primarily mediated by:

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#Question id: 19506

#XL - P Chemistry

The elements with atomic numbers 9, 17, 35, 53, 85 are all ———-

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#Question id: 417

#XL - Q Biochemistry

Muscle contraction involves the conversion of:

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#Question id: 19940

#XL - P Chemistry

Which of the following sets of quantum numbers is not possible for 23rd electron of Cr( At. no. 24) ?