Contribution of scientist : (a) Charles Darwin (b) Lamarck

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6.Evolution

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Contribution of scientist :

$(a)$ Charles Darwin

$(b)$ Lamarck

Option A

Option B

Option C

Option D

Solution

Gave Darwin theory which state that useful variations from the organism are selected by nature i.e. natural selection and gets accumulated in the organism. This causes evolution e.g. industrial melanism, chemical resistance

Lamarck in his book 'Philosophie zoologique' ($1809$) proposed that the evolution of life form had occurred by the use and disuse of organs.

Standard 12

Biology

The scientists believe that evolution is gradual. But extinction, part of evolutionary story, are 'sudden' and 'abrupt' and also group-specific. Comment whether a natural disaster can be the cause for extinction of species.

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What is evolution

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Explain theory of inheritance of acquired characters with proper example.

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When we say ''survival of the fittest'', does it mean that $(a)$ those which are fit only survive, or $(b)$ those that survive are called fit ? Comment.

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The idea of use and disuse of organs was given by

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Contribution of scientist : $(a)$ Charles Darwin $(b)$ Lamarck

Solution

Similar Questions

The scientists believe that evolution is gradual. But extinction, part of evolutionary story, are 'sudden' and 'abrupt' and also group-specific. Comment whether a natural disaster can be the cause for extinction of species.

What is evolution

Explain theory of inheritance of acquired characters with proper example.

When we say ''survival of the fittest'', does it mean that $(a)$ those which are fit only survive, or $(b)$ those that survive are called fit ? Comment.

The idea of use and disuse of organs was given by

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Contribution of scientist :

$(a)$ Charles Darwin

$(b)$ Lamarck