Latest questions in this category.
Thomas Malthus's work on population growth and resource limitation influenced Darwin's concept of natural selection.
Ref: NCERT Class 12 Biology Chapter 6: Evolution Darwinism Lamarckism and Modern Synthetic Theory
Lamarck's theory of inheritance of acquired characteristics has been rejected in favor of Darwin's theory of natural selection.
Ref: NCERT Class 12 Biology Chapter 6: Evolution Darwinism Lamarckism and Modern Synthetic Theory
Mutations do not always result in beneficial changes; they can also be harmful or neutral.
Ref: NCERT Class 12 Biology Chapter 6: Evolution Darwinism Lamarckism and Modern Synthetic Theory
Alfred Wallace independently arrived at the theory of natural selection while working in the Malay Archipelago.
Ref: NCERT Class 12 Biology Chapter 6: Evolution Darwinism Lamarckism and Modern Synthetic Theory
Cyanobacteria were the first organisms to release oxygen through photosynthesis, transforming Earth's atmosphere.
Ref: NCERT Class 12 Biology Chapter 6: Evolution Darwinism Lamarckism and Modern Synthetic Theory
Lamarck's theory of use and disuse is not widely accepted; Darwin's theory of natural selection is the accepted mechanism of evolution.
Ref: NCERT Class 12 Biology Chapter 6: Evolution Darwinism Lamarckism and Modern Synthetic Theory
The Hardy-Weinberg Principle states that allele frequencies remain stable unless affected by evolutionary forces like mutation or selection.
Ref: NCERT Class 12 Biology Chapter 6: Evolution Darwinism Lamarckism and Modern Synthetic Theory
Hugo de Vries suggested that mutations cause large, sudden evolutionary changes, a process he termed 'saltation'.
Ref: NCERT Class 12 Biology Chapter 6: Evolution Darwinism Lamarckism and Modern Synthetic Theory
Lamarck's theory proposed the inheritance of acquired traits, not the survival of the fittest, which is Darwin's concept.
Ref: NCERT Class 12 Biology Chapter 6: Evolution Darwinism Lamarckism and Modern Synthetic Theory
Thick-shelled eggs prevented desiccation, enabling reptiles to dominate terrestrial environments.
Ref: NCERT Class 12 Biology Chapter 6: Evolution Darwinism Lamarckism and Modern Synthetic Theory
Lobefin fishes are considered direct ancestors of modern-day amphibians due to their limb-like fins.
Ref: NCERT Class 12 Biology Chapter 6: Evolution Darwinism Lamarckism and Modern Synthetic Theory
The Cretaceous-Paleogene extinction marked the end of large reptiles (dinosaurs) and the rise of mammals.
Ref: NCERT Class 12 Biology Chapter 6: Evolution Darwinism Lamarckism and Modern Synthetic Theory
