Animals show following features-
- Body is spiny, bilaterally symmetrical ,triploblastic,coelomate and "Pentaradiate (five rayed)".
- Digestion system is complete .
- Water vascular system is present and helps in respiration and transportation in body.
- Tube feet help in locomotion.
- Excretion takes place through body surface.
- Sexual reproduction is seen.
- Ex- Star-fish ,Sea- Urchin etc.
Star-Fish
Star-Fish (Anatomy)
No comments:
Post a Comment