Animals without excretory system, separate sexes,
and calcareous endoskeleton are applicable for

1. Chaetopeura 

2. Ophiura

3. Limulus 

4. Spongilla

Which of the following structure is associated with
locomotion ?
(i) Parapodia.
(ii) Water vascular system.
(iii) Radula.
(iv) Proboscis.

1. (i), (ii), (iii), (iv) 

2. (i) only

3. (i), (ii) only

4. (i), (iii) only

Bony endoskeleton is present in
(i) Pristis (ii) Hippocampus
(iii) Icthyophis (iv) Myxine

1. (i), (ii), (iii), (iv) 

2. (ii), (iii) only

3. (ii) only 

4. (ii), (iii), (iv) only

Match the organism in Column-I with its excretory structure in Column-II

1. (A)$\to$(s),(B)$\to$(p),(C)$\to$(q),(D)$\to$(r)

2. (A)$\to$(s),(B)$\to$(p),(C)$\to$(r),(D)$\to$(q)

3. (A)$\to$(q),(B)$\to$(p),(C)$\to$(r), (D)$\to$(s)

4. (A)$\to$(s), (B)$\to$(q),(C)$\to$(r),(D)$\to$(p)

Which one of the following sets of animals belong to a single taxonomic group?

1. Cuttlefish, jellyfish, silverfish, dogfish, starfish

2. Bat, pigeon, butterfly

3. Monkey, chimpanzee, man

4. Silkworm, tapeworm, earthworm

Select the correct statement about class-Aves

1. They are warm blooded (homoiothermous) animals and are able to maintain a constant body temperature

2. Respiration occurs through lungs and air sacs connected to lungs for supplement respiration

3. They are oviparous with separate sexes, internal fertilisation and direct development

4. All of the above

The animals belonging to all the following groups are exclusively marine except: 
1. Ctenophora
2. Porifera
3. Protochordata
4. Echinodermata

A land snail, a clam, and an octopus all share
1. a mantle
2. calcareous shell
3. a radula
4. distinct cephalization

Which of the following combinations of phylum and description is incorrect?

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)