write the main modification in the plant part of (a) Opuntia (b) Garden pea. (c) Bougainvillia. Explain the significance of modification of these plants.
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a-phylloclade- stem changes into fleshy flat leaf like structure for the photosynthesis
b- leaflet tendril- leaflet modified into tendrils
c-stem throns-it develop from axillary bud
b- leaflet tendril- leaflet modified into tendrils
c-stem throns-it develop from axillary bud
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Answer:
A)Opuntia, the stem is modified into a green flattened structure called as phylloclade which has on its surface a number of spines.
B)garden pea, it is only the terminal leaflets that are modified to become tendrils. In other plants such as the yellow vetch (Lathyrus aphaca), the whole leaf is modified to become tendrils while the stipules become enlarged and carry out photosynthesis.
C)bougainvillea,stem throns-it develops from axillary bud
Explanation:
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