Question

give any two points of difference between Darwinism and neodarwinism

Answer 1

Darwinism (Natural Selection):

1. It is the original theory given by Charles Darwin (1859) to explain the origin of new species.

2. According to this theory accumulation of continuous variations causes change in individuals to form new species.

3. It believes in the selection of individuals on the basis of accumulation of variations.

4. Darwinism does not believe in isolation.

5. It can explain the origin of new characters.

6. Darwinism cannot explain the persistence of certain forms in the unchanged condition.

Neo-Darwinism:

1. Neo-Darwinism is a modification of the original theory of Darwin to remove its short-comings.

2. Instead of continuous variations mutations are believed to help form new species.

3. Variations accumulate in the gene pool and not in the individuals

4. Neo-Darwinism incorporates isolation as an essential component of evolution.

5. The theory cannot explain the origin of new characters.

6. The theory can explain the occurrence of unchanged forms over millions of years.

Answer 2

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