Flycatcher birds that migrate from Africa to Europe feed their nestlings mostly with moth caterpillars. The data presented show the mean dates of egg laying, hatching, and fledging of flycatcher young, and the 1980 and 2000 peak mass of caterpillars.

The most likely cause for the shift in caterpillar peak mass is

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#Question id: 16847

#General Aptitude

 Talk through one's hat

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#Question id: 12146

#Section 1: Ecology

Which of the following is not a density-dependent factor? 

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#Question id: 4946

#Section 2: Evolution

Although absolute distinctions between the ʺmost evolvedʺ protobiont and the first living cell are unclear, biologists generally agree that one major difference is that the typical protobiont could not

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#Question id: 10646

#Section 1: Ecology

Four sampling unit of Area occupy by species having following number is 00, 20, 10, 20. What is abundance of that species?

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#Question id: 8928

#Section 2: Evolution

An adult animal that possesses bilateral symmetry is most certainly also