NEETZoologyEvolution
What is natural selection ?
Options
- AA process where all individuals have an equal chance of survival
- BA mechanism where the environment selects individuals based on their reproductive success
- CA method by which organisms adapt instantly to environmental changes
- DA phenomenon where organisms evolve due to random genetic mutations
Correct answer
B. A mechanism where the environment selects individuals based on their reproductive success
Step-by-step solution
Those characteristics which enable some to survive better in natural conditions (climate, food, physical factors, etc.) would outbreed others that are less-endowed to survive under such natural conditions . Another word used is fitness of the individual or population. The fitness, according to Darwin, refers ultimately and only to reproductive fitness. Hence, those who are better fit in an environment, leave more progeny than others. These, therefore, will survive more and hence are selected by nature. He called it