Biology, asked by rhchn4790, 1 year ago

In Opuntia the spines are modification of [Pb. PMT 2004]
A) Leaf
B) Branch
C) Epidermis
D) Flower

Answers

Answered by priyagrover
2
the correct one is A. i.e. leaf
Answered by kingofself
0

In 'Opuntia', the spines are modification of Leaf.

Option - A

Explanation:

  • In plant morphologies, variety of modifications leaves is seen. These are thorns, spines, prickles.
  • All these structures are keen, stiff and perform the same function that is defense.
  • Due to the shortfall of water in the Sahara, in some plants leaves are modified to form spines.
  • The spines act as defensive structures. Plants like cactus have a specific kind of spines which are “very small and deciduous” with many barbs through its length.
  • This variety of spine is called as glochidium and is present in “aereoles of Optunia”.
  • Spines can be also referred to as petiolar spines as in “Foquieria”, “leaflet spines as in Phoenix” and “stipular spines” as seen in Euphoria.

Learn more about the Opuntia:

Q: Why phylloclade of opuntia is thick and fleshy

Link: https://brainly.in/question/2799626

Q: State the function of the leaves spines in Opuntia

Link: https://brainly.in/question/4423136

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