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 sudden development of complex organisms from the pre-existing simpler forms is known as evolution.

The statement is

The gradual development of simpler organisms from the pre-existing simpler forms is known as evolution
The gradual development of complex organisms from the pre-existing simpler forms is known as evolution

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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