Assertion : In developed leaves of australian acacia only petioles carry out photosynthesis.Reason : With the shedding of leaflets or laminae, the petiole becomes green, flat and carries out photosynthesis..
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a
Assertion and Reason are correct and Reason explains the Assertion.
b
Assertion and Reason are correct but Reason does not explain the Assertion.
c
Assertion is correct but Reason is incorrect
d
Both Assertion and Reason are incorrect.
answer is A.
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Detailed Solution
In australian acacia, the lamina or leaflets are ephemeral and the petiole becomes green flat and carries out photosynthesis. Such photosynthetic green flat petioles are called phyllodes.