the russian scientist pavlov.
Propounded the germ theory of disease Invented pasteurization.
Malthus
Charles Darwin is the scientist who proposed the theory of evolution by natural selection in his book "On the Origin of Species" published in 1859.
The theory of evolution was originally presented by Charles Darwin. Since the time of Darwin, there have been many other scientists who have contributed to evolutionary theory. One notable evolutionary scientist of the 21st century is Richard Dawkins.
Darwin was the first scientist to have the courage to put forward the theory of natural selection.
B.F. Skinner is the psychologist who propounded the Conditioned-Learning theory, also known as operant conditioning. Skinner's work focused on how behavior is influenced by its consequences through reinforcement and punishment.
kautiliya propounded saptang theory
Ivan Pavlov was the scientist who developed the theory of conditioned response through his famous experiments with dogs and bell ringing. He found that dogs could be trained to associate a neutral stimulus (like a bell) with a reflex response (like salivating) through repeated pairings.
darvin
kautilya
aryabhatta
Milton Friedman propounded the Wealth Theory of Demand for Money. It is also known as Restatement of Quantity Theory of money.
explain theory of absolute cost advantage as propounded by Adam smith
Isaac newton
thorndike
It is the empirical theory of Causality as propounded by hume.
The Innovation Theory of Profit has been propounded by: F.H. Knights Keynes F.B. Hawley Kent Joesph Schumpeter.