Question

A pair of related terms is given below. On the basis of the relationship in the first pair write the suitable word in the gap of second pair. Law of use and disuse: Lamarck :: Natural Selection : _______​

Answer 1

Natural selection : Mechanism of Evolution

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Answer 2

In the given pair of related terms,

LAW OF USE AND DISUSE : LAMARCK :: NATURAL SELECTION : CHARLES DARWIN.

Explanation

THEORIES OF EVOLUTION -

• Theories are proposed by various scientists explaining the relationship between different organisms and the sustainable changes over time.
• The evolution process depends on the genetic variability in a population.
• The theory of use and disuse of organs was proposed by Lamarck explaining the evolutionary developmental changes in the organisms.
• He elucidated that some organs develop as a result of environmental need whereas some organs become vestigial when not in use.
• The theory of natural selection was explained by Charles Darwin.
• He explained that different individuals in a population develop suitable traits to survive in the environmental condition to ensure their existence.