For  nearly 200  years, biogeographers have  noted that  the  tropics  have  more terrestrial species than  temperate regions. Which of the following is NOT a plausible explanation for this pattern?

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#Question id: 10697

#Section 1: Ecology

Which of the following is correct observation of above species?

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#Question id: 12155

#Section 2: Evolution

Under which of the following conditions do the mathematical models for competition tell us that coexistence of two competing species is most likely? 

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#Question id: 10620

#Section 2: Evolution

Above graph represent population size (N) versus time (t) for logistic growth features S-shaped curve sigmoid growth having following feature, which of the following is correct statement?

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#Question id: 3386

#Section 2: Evolution

Which statement represents the best explanation for the observation that the nuclear DNA of wolves and domestic dogs has a very high degree of homology?

a) Dogs and wolves have very similar morphologies.

b) Convergent evolution has occurred.

c) Dogs and wolves not shared more recent common ancestor

d) Dogs and wolves shared a more recent common ancestor

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#Question id: 11771

#Section 2: Evolution

Reciprocal transplant experiments are designed to reveal whether differences between populations are due to: