Review the formula for effective population size. Imagine a population of 1,000 small rodents. Of these, 300 are breeding females, 300 are breeding males, and 400 are nonbreeding  juveniles.  What is the effective  population size?

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#Question id: 3436

#Section 2: Evolution

Loss of responsiveness to stimuli that convey little or no new information is called

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#Question id: 4605

#Section 2: Evolution

Over long periods of time, many cave-dwelling organisms have lost their eyes. Tapeworms have lost their digestive systems. Whales have lost their hind limbs. How can natural selection account for these losses?

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#Question id: 16789

#Section 3: Mathematics and Quantitative Ecology

The median of number 50, 48, 47, 48.5, 50.5, 52, 48.8, 46 will be: 

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#Question id: 10598

#Section 2: Evolution

In a wild life reserve, we have two species of mammal. Species A reproduce thrice a year and produced 6-10 offspring per litter. Species B reproduce once in 2-3 year and produced 1-2 offspring during each cycle of reproduction. Which of the following statement is true?

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#Question id: 3475

#Section 2: Evolution

Which of the following condition is not favour polygyny?