Evolution and its factors — task. Science State Board, Class 10.

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State whether the statements are true or false and correct the following statement if false. If true then justify.

1. The use and disuse theory of organs' was postulated by Charles Darwin.

The statement is

The use and disuse theory of organs was postulated by Richter
The use and disuse theory of organs was postulated by Lamarck

2. Evolution is not possible without variation.

The statement is

Variations are differences between cells or individuals within a species and the offspring of the same parent
Variations are differences between cells or individuals within a species and the offspring of the different parents

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