In 1972, ________ coined the term ‘pyramid of numbers’ that represented the total numbers of individuals (population) present in each trophic level.

Charles Elton

 The correct answer is Option (4) - Charles Elton

The First Law of Thermodynamics asserts that energy cannot be created nor destroyed but can undergo transformation from one form to another.

This concept pertains to the overall count of individuals (population) existing at each trophic level.

The term "pyramid of numbers" was initially introduced by Elton in 1972. Charles Elton, an English zoologist and animal ecologist, developed ecological pyramids in 1927, which are also referred to as Eltonian pyramids.