Which of the following organism shows the presence of jointed appendages?
Spider
Sea-cucumber
Chiton
Pila
Spider belongs to the phylum Arthropoda, which have a characteristic feature of joint appendages.
Question 18 Which one of the following feature is not a characteristic of protochordata? (a) Presence of notochord (b) Bilateral symmetry and coelom (c) Jointed legs (d) Presence of circulatory system