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: 5178

#General Aptitude

Finding the numbers zeros 65×75×32×21×35×80 . 

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#Question id: 11638

#Unit 9. Diversity of Life Forms

Which group includes members that are important primary producers in ocean food webs, causes red tides that kill many fish, and may even be carnivorous?

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#Question id: 12949

#Unit 7. System Physiology – Animal

At which renal tubular sites would the concentration of creatinine be expected to be highest in a normally hydrated person?

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#Question id: 32319

#Unit 1. Molecules and their Interaction Relevant to Biology

The standard free-energy change for given reactions, using the equilibrium constants given for the reactions at 25 °C and pH 7.0, will be

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#Question id: 4594

#Unit 11. Evolution and Behavior

Which one of the following observations did Darwin first make during his discovery of evolution?