Charles Darwin concluded that

Existing living forms share similarities to varying degree not only among themselves but also with the life forms that existed millions of years ago.

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These has been gradual evolution in the life forms on earth.

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Those organism, who are better fit in an environment leave more progeny that others. These therefore, will survive more and hence are selected by nature

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All the above

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Solution

The correct option is D All the above
The Darwin theory of natural selection can be concluded as :
1. The number of organisms are produced more than that can survive because of limited resources.
2. Organisms struggle for the necessities of life; there is competition for resources.
3. Individuals within a population vary in their traits; some of these traits are heritable.
4. Some variants are better adapted to survive and reproduce under local conditions than others.
5. Better-adapted individuals are more likely to survive and reproduce, thereby passing on copies of their genes to the next generation.
6. Species whose individuals are best adapted survive while others become extinct.
So, the correct option is 'All of the above'.

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Similar questions

Q. Statement 1: Charles Darwin concluded that existing living forms share similarities to varying degrees not only among themselves but also with the life forms that existed millions of years ago.

Statement 2: According to Darwin, fitness refers ultimately and only to reproductive fitness.

Q. Consider the following three statements and select the correct option stating which one is true (T) and which one is false (F).
(i) Oparin of Russia and Haldane of England proposed that the first form of life could have come from pre-existing non-living organic molecules (e.g., RNA, protein, etc.) and that formation of life was preceded by chemical evolution.
(ii) Based on observations made during a sea voyage round the world, Charles Darwin concluded concluded that existing living forms share similarities to varying degrees only among themselves.
(iii) Evolution by natural selection must have started when cellular forms of life with different metabolic capability originated on Earth.

Q. Those who are better fit in an environment are hence selected by nature. This leads to the mechanism of evolution. Which theory suggests this?

Q. Which of the following statements about natural selection are correct?
(i) Natural selection tends to increase the characters that enhance survival and reproduction.
(ii) Individuals with better adaptive ability will produce more progeny.
(iii) Was considered as a mechanism of evolution by Darwin.

Q. Read the following statements carefully and select the correct ones.
(i) Alfred Wallace, a naturalist who worker in Malay Archipelago had also come to similar conclusions as Darwin around the same time.
(ii) August Weismann by careful experimentation demonstrated that life comes only for pre-existing life.
(iii) The organs which have the same fundamental structure but are different in functions are called homologous organs.
(iv) Rate of appearance of new form is inversely proportional to life span of organism.

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