(a) Identify figure A to D
(b) Which one of them is (i) diploblastic , (ii) triploblastic ?
(c) Which triploblastic animal is (i) Acoelomate (ii) Coelomate ?
(d) Which one belong to phylum
(i) Cnidaria , (ii) Platyhelminthes , (iii) Annelida , (iv) Arthropoda ?
(e) Which one of them has
(i) Organ level organisation , (ii) Organ-system level organisation ?
(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 ?

Answer

N/a

Explanation

(a) Identification. A -Scolopendra (Centipede), (B)-Hydra , C-Fasciola hepatica (liverfluke), D-Pheretima posthuma (earthworm)
(b) (i) Diploblastic. Hydra (ii) Triploblastic. Fasciola, Pheretima, Scolopendra
(c) (i) Triplobastic acoelmate-Fasciola
(ii) Triploblastic coelomate-Pheretima, Scolopendra
(d) (i) Chidaria. Hydra, (ii) Platyhelminthes. Fasciola , (iii) Annelida. Pheretima , (iv) Arthropoda. Scolopendra
(e) (i) Organ level organisation - Fasciola , (ii) Organ system level of organisation. Pheretima, Scolopendra
(f) (i) Flame cells - Fasciola , (ii) Nephridia - Pheretima
(g) Tracheae.Scolopendra.