question_answer 41)

  The feature that is not a characteristic of protochordata? (a) Presence of notochord                                           (b) Bilateral symmetry and coelom (c) jointed legs                                                                  (d) Presence of circulatory system

Answer:

  (c) Jointed legs are characteristics of arthropods so it is not a character of protochorblats The feature of protochordates are They are triploblastic bilaterally symmetrical body and a coelom. They show notochord (a new feature of body design) at some stages of their lives. These are mostly marine animals, e.g., Balanoglossus, Herdmania. Amphioxus or Branchiostoma and Doliolum.