Q18 of 57 Page 48

The feature that is not a characteristic of protochordate?

Protochordates are bilaterally symmetrical, triploblastic and coelomate. They have a closed circulatory system. Example- Amphioxus

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16

Organisms without nucleus and cell organelles belong to

(i) fungi


(ii) Protista


(iii) cyano bacteria


(iv) archaea bacteria

 17

Which of the following is not a criterion for classification of living organisms?

 19

The locomotory organs of Echinodermata are

 20

Corals are