Spare the rod and spoil the child. It is a famous saying. Its contribution in modern class-room serves our purpose in a

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#Question id: 9220

#9. Diversity of Life Forms

Which of the following factors could cause the largest increase in the effective population size of a species?

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#Question id: 17287

#13. Methods in Biology

Consider the following grouped frequency distribution : 

What is mean deviation about the median ?  

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#Question id: 24185

#Aptitude

In Moby Dick, Herman Melville wrote that the whale men were “enveloped in whale lines,” that each man relied on the others during moments of danger.

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#Question id: 11384

#10. Ecological Principles

Two islands, P and Q, are similar in habitat and other features. They are 100 and 200 km2 in size respectively, but have the same number of species. Which of the following statements can independently explain this observation?

(i) P is closer to the mainland than Q

(ii) P is further away from the mainland than Q

(iii) P has higher speciation rates than Q

(iv) P has lower speciation rates than Q

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#Question id: 2959

#2. Cellular Organization

During which of the following mitotic phases are chromosomes dispersed the most?