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Solution


Q.

Which of the following is correct for r-selected species                   [2016]
1 Large number of progeny with small size  
2 Large number of progeny with large size  
3 Small number of progeny with small size  
4 Small number of progeny with large size  

Ans.

(1)

Organisms that are r-selected (r-strategists) able to colonise a habitat rapidly, utilising the food and other resources before other organisms are established and begin to compete. The r-strategists tend to be relatively small organisms with short life spans (e.g., bacteria) and often live in temporary or unstable environments; characteristically their survival depends on their ability to produce large numbers of offspring rather than on their ability to compete.