AIIMS2019BotanyAnimal Kingdom
Which of the following options have features corresponding to the given animals? Holothuria, Asterias, Antedon, Echinus
Options
- AWater vascular system, Haemal and perihaemal systems
- BWater canal system, Calcareous shell
- CCalcareous shell, Acoelomate
- DPseudocoelomate, Water vascular system
Correct answer
A. Water vascular system, Haemal and perihaemal systems
Step-by-step solution
All the given animals are echinoderms. They possess water vascular system, haemal and perihaemal systems. They have true enterocoelic coelom.