Animal Kingdom Question 278
Question: Trait common amongst earthworm, leech and centipede is:
Options:
A) Absence of legs
B) Hermaphrodite nature
C) Ventral nerve cord
D) Malpighian tubules
Show Answer
Answer:
Correct Answer: C
Solution:
Option A is incorrect as earthworm and leech are annelids and have nephridia as their excretory organs, while centipedes are arthropods and have Malpighian tubules as excretory organs.
Option B is incorrect as earthworm and leech are hermaphrodites (each organism carries both male and female reproductive organs, while centipedes have either male or female sex organs.
Ventral nerve cord is a backward extension of circumpharyngeal connective that are held together and consists of the segmental ganglion. It makes the nervous system of many invertebrates, like annelids and arthropods which make option C correct.