Class 12th Biology 2017 Set1 Outside Delhi Board Paper Solution
Question 25
Explain ‘fitness of a species’’ as mentioned by Darwin.
Answer
‘‘Fitness of a species’’ according to Darwin means reproductive fitness. All organisms after reaching reproductive age have varying degree of reproductive potential some organisms produce more offspring and some organism produce only few offspring. This phenomenon is also called as differentail reproduction.
Hence the species which produces more offsprings are selected by nature.
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