Question

Which of the following sets has homologous organs?

• A. Hands of man, monkey and kangaroo and trunk of elephant
• B. Hind limbs of grasshopper, horse and bat
• C. Both A and B
• D. Mouth parts of cockroach, mosquito and honey bee

Answer 1

The correct option is D Mouth parts of cockroach, mosquito and honey bee

Homologous organs differ morphologically. They have similar internal structure. They develop in related organisms. Stages in the development are similar. They perform different functions. They have a similar developmental pattern. Homologous organs show adaptive radiation (divergent evolution). Mouth parts of cockroach, mosquito and honeybee are homologous organs as they are morphologically different and have similar internal structures. They perform different functions. Thus, option D is correct.