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CBSE - X - Biology - Heredity and Evolution

awefully awesome question

Asked by 14th February 2009, 3:00 PM
Answered by Expert

Answer:

Spine of Cactus and thorn of Bougainvillea are analogous structures. This is because their basic origin is different. Opuntia i.e. cactus spines are leaf modifications whereas thorns of Bougainvillea are stem modifications.

Answered by Expert 19th February 2009, 7:13 PM

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