LIFE SCIENCE

Detailed explanation-1: -The struggle for existence: The concept of the struggle for existence concerns the competition for resources needed to live. Darwin reasoned that there must be a competition between individuals belonging to the same or other species, for sharing food, water and living space.

Detailed explanation-2: -Organisms produce more offspring than-given the limited amounts of resources-can ever survive, and organisms therefore compete for survival. Only the successful competitors will reproduce themselves.

Detailed explanation-3: -The concept of the struggle for existence (or struggle for life) concerns the competition or battle for resources needed to live. It can refer to human society, or to organisms in nature. The concept is ancient, and the term struggle for existence was in use by the end of the 18th century.

Detailed explanation-4: -In the Origin of Species, Darwin declared that there was a consistent ‘struggle for existence in nature, where only the fittest could survive. This theory came into existence partially from his observation of Thomas Malthus’s Essay on the Principle of Population.