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The two key concepts of Darwinian theory...

The two key concepts of Darwinian theory of evolution are

A

Fitness

B

Branching descent

C

Natural selection

D

Both 2 and 3

Text Solution

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The correct Answer is:
D
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Key concept of Darwinian theory of evolution–

Which of the following are the two key concepts of Darwinian theory of evolution?

Branching descent and natural evolution are the two key concepts of Darwinian theory of evolution . Explain each concept with the help of a suitable example

A. The conditions primitive on earth (before the origin of life) were : low temperature, volcanic storms, reducing atmosphere containing Ch_(4),NH_(3) , etc. B. Cheetah and humans share similarities in the pattern of bones of forelimbs. C. In a collection of moths made in the 1850s i.e., before industrialization set in, it was observed that there were more dark-winged moths on trees than white-winged moths. D. Branching descent and natural selection are the two key concepts of Darwinian theory of evolution. E. The Neanderthal man with a brain size of 1400 cc lived in east and central Asia 25,000-10,000 years ago. Which set of given statements are correct ?

Assertion :- Branching descent and Natural selection are the two key concepits of Darwinian theory of evolution. Reason :- Darwinism is able to explain the presence of vestigeal organ.

What are the two key concepts of darwinian theory of evolution ?

The key concept of darwinian theory of evolution is