Charles Darwin


 
 
Concept Explanation
 

Charles Darwin

Charles Darwin, an English naturalist, first described the idea of evolution in his book ‘The Origin of Species’, published in 1859. According to him, most life forms that we see today have developed by an accumulation of changes in body design over a period of time through natural selection. These new forms are more complex than their ancestral forms.

There are many theories given by Charles Darwin, which are accepted and are still followed . These theories help us to understand the evolution of Human life.

According to the Darwin's theory of Evolution:

  • The first cellular forms of life appeared on Earth was about 2000 million years ago.
  • After the existance of single - celled organisms, followed by multicellular organisms, and invertebrates were formed and became active. 
  • Jawless fish evolved and different organism started to invade from water to land. Later, amphibians, reptiles and some of the viviparous mammals came into existence.
  • The modern Homo sapiens arose during ice age between 75,000-10,000 years ago. 
  • No two individuals are alike. They are different from each other either in their physical feature, behaviour, etc. 
  • Some traits are consistently passed on from their parent to the offspring. 
  • The rate of reproduction varies in all living species. Some reproduce more and some minimum.
  • Sample Questions
    (More Questions for each concept available in Login)
    Question : 1

    Idea of evolution was given by _____________

    Right Option : C
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    Explanation
    Question : 2

    The modern Human sapiens arose during ___________ period.

    Right Option : A
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    Explanation
    Question : 3

    What are Darwin finches ? 

       very   hard

    Right Option : B
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    Explanation
     
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