Assertion :Liverworts fail to spread to a new locality through fragmentation. Reason: Gemmae are helpful in propagating liverworts in different locality.

If both the assertion and the reason are true and the reason is a correct explanation of the assertion

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If both the assertion and reason are true but the reason is not a correct explanation of the assertion

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If the assertion is true but the reason is false

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If both the assertion and reason are false

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Solution

The correct option is B If both the assertion and reason are true but the reason is not a correct explanation of the assertion
Fragmentation leads to increase in the number of plants in a locality but it does not permit spread of the plant to a new locality. Being small and sufficiently buoyant, gemmae are easily carried when detached. They spread by water and wind currents to new habitats, where each grows into a new individual immediately.
So, the correct answer is 'If both the assertion and reason are true but the reason is not a correct explanation of the assertion'

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1. Both assertion and reason are true and the reason is the correct explanation of the assertion

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\to τ = \to r \times \to F b u t \to τ \neq \to F \times \to r .

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