Q. Which one of the following pairs of items correctly belongs to the category of organs mentioned against it?
A) Wings of honey-bee and wings of crow - Homologous organs
B) Thorn of Bougainvillea and tendrils of Cucurbita - Analogous organs
C) Nictitating membrane and blind spot in human eye - Vestigial organs
D) Nephridia of earthworm and malpighian tubules of cockroach - Excretory organs
Explanation
[Solution from source] Nephridia in earthworm and Malpighian tubules in cockroach are both excretory organs. Wings of bee and crow are analogous (not homologous), thorn and tendril are homologous (not analogous), and the blind spot is just where the optic nerve leaves the eye, not a vestigial organ. Answer (4).
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.