00:01
So the question we have is the wings of birds, the legs of pigs, and the flippers of dolphins provide examples of vestigial structure, homologous structure, echo white characteristics, artificial selection, uniform materialism, right? so, you know, the vestigeal organs are defined as the structures of, you know, structures of, we can say, biological systems which have become non -functional or either have reduced function.
00:38
In some of these cases, the vestigeor organs still exist physically with no observables use, such as the vermiform appendix in humans.
00:50
So the acquired character is the modification or change in the tissue or organ due to the use, disuse, or environmental effects.
01:00
During the organism lifetime.
01:04
So these characters are non -inheritable, such as skills, ideas, knowledge, chalices on the fingers and larger muscle size through exercise.
01:16
The artificial selection is the breeding of the plants and animals.
01:25
It is the artificial process through which the evolution can occur...