Assertion :More dicot species are known than that of monocot species. Reason: Two cotyledons are present in the dicot plants.

Both Assertion and Reason are correct and Reason is the correct explanation for Assertion.

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Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion.

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Assertion is correct but Reason is incorrect.

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Both Assertion and Reason are incorrect.

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Solution

The correct option is B Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion.
The number of dicot species is over 200,000. About 50,000 species of monocots are known. Dicots are characterized by the presence of two cotyledons in the seed, generally reticulate venation in leaves, concentric tissues in the stem with open vascular bundles arranged in a ring, penta or tetramerous flowers. Monocots are characterized by the presence of a single cotyledon in the seed, generally parallel venation in the leaves, scattered closed vascular bundles in the stem and trimerous flowers.
So, the correct answer is 'Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion.'
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