Match Column - I with Column - II and choose the correct option

      Column - I                                Column - II

a.A vector of disease                    (i) Bombyx

b.A gregarious pest                      (ii) Limulus

c.A living fossil                             (iii) Locusta

d.An economically                        (iv) Culex insect

   important

1. a(iii), b(ii), c(i), d(iv)

2. a(i), b(ii), c(iii), d(iv)

3. a(ii), b(iv), c(iii), d(i)

4. a(iv), b(iii), c(ii), d(i)

Chitinous exoskeleton is present in

(1) Mollusca

(2) Echinodermata

(3) Arthropoda

(4) Porifera

Which of the following is the member of the largest phylum

1.Hookworm

2.Pinworm

3.Earthworm

4.Silkworm

Which of the group of animals is triploblastic, coelomate and bilateral?

(1) Aschelminthes

(2) Porifera

(3) Arthropoda

(4) Ctenophora

Chitin is a polysaccharide found in the exoskeleton of

(1) prawn

(2) insects

(3) crabs

(4) all of these

Which one of the following features is common in silverfish, scorpion, dragonfly and prawn?

(1) Two pairs of legs and segmented body

(2) Living chitinous cuticle and two pairs of antennae

(3) Jointed appendages and chitinous exoskeleton

(4) Closed blood circular system

Match each item in Column I with one item in Column II regarding and choose your answer from the codes given below :

Select the option that correctly matches characteristic features with the group of three animals.

(1) Skeleton of spicules − Sycon, Adamsia, Spongilla

(2) Excretion by flame − Taenia, Fasciola, Ancylostoma

(3) Mouth contains radula −  Dentalium, Octopus, Ophiura

(4) Jointed appendages −  Limulus, Apis, Laccifer

Which of the following features is not present in the phylum – Arthropoda?

(1) Metameric segmentation

(2) Parapodia

(3) Jointed appendages

(4) Chitinous exoskeleton

Which of the following is not an arthropod characteristic?

1. Jointed appendages

2. Non-segmented bodies

3. Periodic moulting

4. Articulated exoskeleton