(a) Identify figure A to D.
(b) Which one of them is (i) diplobalstic; (ii) Coelomate?
(c) Which triplobalstic animal is (i) Acoelomate; (ii) Coelomate?
(d) Which one belong to phylum
(i) Cnidaria; (ii) Platyhelminthes; (iii) Annelids; (iv) Arthropoda?
(e) Which one of them has
(i) Organ level organization?
(ii) Organ system level organization?
(f) Which one of them has excretory organs in the form of (i) Flame cells; (ii) Nephridia?
(g) Which one of them has trachea as the respiratory organ?
(a) A- Scolopendra (Centipede), (B)- Hydra; C-Fasciola hepatica (liverfluke), D-Pheretima posthuma (earthworm).
(b) (i) Diploblastic –Hydra. (ii) Coelomate- Fasciola, Pheretima, Scolopendra
(c) (i) Triploblastic acoelmate – Fasciola
(ii) Triploblastic coelomate – Pheretima, Scolopendra.
(d) (i) Cnidaria. Hydra; (ii) Platyhelminthes. Fasciola; (iii) Annelida. Pheretima; (iv) Athropoda- Scolopendra
(e) (i) Organ level organisation Fasciola; (ii) Organ system level of organization. Pheretima, Scolopendra.
(f) (i) Flame cells - Fasciola; (ii) Nephridia- Pheretima.
(g) Tracheae – Scolopendra.
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