(C) $Calotropis$ (Aak) is a plant that produces highly poisonous cardiac glycosides,which prevent cattle and goats from grazing on it. Thus,the Assert

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Assertion is correct,but Reason is incorrect.

(C) $Calotropis$ (Aak) is a plant that produces highly poisonous cardiac glycosides,which prevent cattle and goats from grazing on it. Thus,the Assertion $(A)$ is correct.However,$Calotropis$ does not possess thorns; it relies on chemical defense mechanisms (toxins). Thorns are indeed a morphological means of defense in plants (such as in $Acacia$ or $Cactus$),but this does not apply to $Calotropis$. Therefore,the Reason $(R)$ is incorrect.

Class 11 Biology Morphology of Flowering Plants Mix Examples- Morphology of Flowering Plants

Medium

$A$: Cattle or goats never graze on $Calotropis$.
$R$: Thorns are present as a morphological means of defence.

A
Assertion and Reason both are correct and Reason is the correct explanation of Assertion.
B
Assertion and Reason both are correct but Reason is not the correct explanation of Assertion.
C
Assertion is correct,but Reason is incorrect.
D
Both Assertion and Reason are incorrect.