Question

Which ones are homologous organs?

• A. Tendrils of Cucurbita and thorns of Bougainvillea
• B. Tendrils of Pea and thorns of Bougainvilla
• C. Phylloclades of Opuntia and phyllodea of Acacia
• D. Spines of Acacia and tendrils of Passiflora

Answer 1

The correct option is A Tendrils of Cucurbita and thorns of Bougainvillea

• Homologous organs are the organs which have similar structure and different function and have the same developmental origin.
  
• Both the thorns of bougainvillea and tendrils of Cucurbita origin from the stem and are modified from the auxiliary buds but their functions are different.
• Hence tendrils of Cucurbita and thorns of Bougainvillea are homologous organs.
  
• So, the correct answer is 'Tendrils of Cucurbita and thorns of Bougainvillea'.