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B
Structurally similar
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C
Structurally and functionally similar
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D
With common embryonic origin
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Solution
The correct option is A Functionally similar A phylloclade is a flattened stem of with multiple internodes and nodes that serve as a leaf. It arise in the axil of the leaf, does not have any axillary bud but shows unlimited growth. A cladode is defined as a phylloclade of one or two internodes. The flattened rachis and petiole which is transformed into a sickle-shaped to carry out photosynthesis are termed as phyllode. The spines on both surfaces represent the modified leaves of the axillary bud which serve to check the rate of transpiration and also protect the plant from herbivores.