Question

Are the thorns of Bougainvillea and tendrils of Cucurbita homologous or analogous ? Which type of evolution has brought such a similarity in them?

• A. Homologous and convergent evolution
• B. Analogous and divergent evolution
• C. Homologous and divergent evolution
• D. Analogous and convergent evolution

Answer 1

The correct option is C Homologous and divergent evolution

Homologous refers to having the same basic structure but different functions. Thorns of Bougainvillaea and tendrils of Cucurbita are modified from the auxiliary buds but their functions are different. The thorns in Bougainvillaea provide protection while the tendrils in Cucurbita provide support. Thus both are homologous in nature.

Divergent evolution is the process whereby groups from the same common ancestor evolve and accumulate differences, resulting in the formation of new species.since they share common ancestors. It represents the divergent evolution.

So, the correct answer is 'Homologous and divergent evolution'.