NEETZoologyEvolution
According to Lamarck, how did giraffes acquire long necks?
Options
- AThrough natural selection
- BBy genetic mutation
- CBy elongation due to foraging on tall trees and passing this trait to succeeding generations
- DDue to environmental changes
Correct answer
C. By elongation due to foraging on tall trees and passing this trait to succeeding generations
Step-by-step solution
Even before Darwin, a French naturalist Lamarck had said that evolution of life forms had occurred but driven by use and disuse of organs. He gave the examples of Giraffes who in an attempt to forage leaves on tall trees had to adapt by elongation of their necks. As they passed on this acquired character of elongated neck to succeeding generations, Giraffes, slowly, over the years, came to acquire long necks . Nobody believes this conjecture any more. Is evolution a process or the result of a process? The world we