NTA Abhyas NEET2020BotanyAnimal KingdomPractice
Which one of the following groups of three animals each is correctly matched with their one characteristic morphological feature?
Options
- AAnimal Morphological features Liver fluke, Sea cucumber Bilateral symmetry
- BAnimal Morphological features Centipede, Prawn, Sea cucumber Jointed appendages
- CAnimal Morphological features Scorpion, Spider, Cockroach Ventral solid central nervous system
- DAnimal Morphological features Cockroach, locust, Taenia Metameric segmentation
Correct answer
C. Animal Morphological features Scorpion, Spider, Cockroach Ventral solid central nervous system
Step-by-step solution
Scorpion, spider and cockroach have a ventral solid central nervous system, all belonging to phyla Arthropoda. Bilateral symmetry is found in liver fluke, but sea cucumber has radial symmetry. Metamerism is observed in cockroach and locust (both Arthropoda) but not in Taenia (Platyhelminthes) Joint appendages are a characteristic feature of Arthropoda and sea cucumber is excluded.