Evolution Question 30
30. Which one of the following pairs of items correctly belongs to the category of organs mentioned against it?
[2008]
(a) Thorn of Bougainvillea and tendril of Cucurbita - Analogous organs
(b) Nictitating membrane and blind spot in human eye - Vestigial organs
(c) Nephridia of earthworm and malpighian tubules of Cockroach - Excretory organs
(d) Wings of honey bee and wings of crow Homologous organs
Show Answer
Answer : c
Hints & Solution
(c) Nephridia of earthworm and malphigian tubules of cockroach belongs to excretory organs. Earthworm has a well developed excretory system which is composed of large number of minute, coiled and glandular segmentally arranged excretory tubules called the nephridia. Malphigian tubules of cockroach are extremely fine yellowish unbranched thread like structure present at the function of midgut and hindgut.
