criticism of darwinism -arrival of the fittest

Question

CRITICISM OF DARWINISM -

1. Arrival of the fittest: Darwinism explains the survival of the fittest but was unable to account for the arrival of the fittest.
2. Vestigial organs: Darwin's theory fails to explain the presence of vestigial organs. According the theory of natural selection, vestigial organs should not be present.
3. Inheritance of small variations: The natural selection states that only useful variations are transmitted to the next generation but sometimes small variations, which are not useful for the possessor, are inherited.
4. Over-specialization of some organs: Some organs such as tusks of elephants, antlers of deer have developed so much that instead of providing usefulness to the possessor, they often given hindrance to them. This theory cannot explain these facts.
5. Discontinuous variations: Darwin's theory fails to explain the cause of sudden changes in the body. The main drawback of Darwin ' s theory was lack of knowledge of heredity and that is why he could not explain that how the variations are caused.