1. Blind sac body plan occurs in

Multiple-choice Questions

1. Blind sac body plan occurs in 

(a) Cnidaria 

(b) Arthropoda 

(c) Echinodermata 

(d) Hemichordata

2. Physalia belongs to phylum 

(a) Platyhelminthes 

(b) Cnidaria 

(c) Nemathelminthes 

(d) Arthropoda

3. Flame cells are found in phylum 

(a) Porifera 

(b) Coelenterata

(c) Platyhelminthes

(d) Arthropoda

4. ___________ is commonly known as hookworm. 

(a) Wuchereria 

(b) Ancyclostoma

(c) Ascaris 

(d) Nereis

5. Which of the following is bilaterally symmetrical? 

(a) Pleurobrachia 

(b) Cucumaria 

(c) Aurelia 

(d) Pheretima

6. Malpighian tubules or coxal glands are organs of excretion found in 

(a) molluscs 

(b) arthropods 

(c) hemichordates 

(d) platyhelminthes

7. ________ is known as living fossil. 

(a) Limulus

(b) Locusta 

(c) Laccifer 

(d) Loligo

8. The member of second largest phylum is 

(a) Lobster 

(b) Squid 

(c) Saccoglossus

(d) Antedon