The changes of living organisms over generation is referred to as

Explanation

Human evolution is the process by which humans evolved from ape-like ancestors over millions of years. This process resulted in the development of physical and behavioral traits that all humans share today. 

Organic evolution is the theory that all living organisms have evolved from pre-existing species, and that the differences between organisms are due to changes in their genetic makeup over generations. Organic evolution, also known as biological evolution, is the gradual process by which living organisms change over time. It's the theory that all species are descended from common ancestors, and that the differences between them are due to changes in their genetic makeup over generations. 

Physical evolution" refers to the process by which the physical characteristics of an organism change over generations, primarily due to changes in its genetic makeup, resulting in adaptations to its environment, often manifested in alterations to body shape, size, and function of different body parts; essentially, it's the observable physical manifestation of biological evolution at the organism level. 

There is an explanation video available .