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)

Which of the following set of animals belong the phylum hemichordate?

1. Balanoglossus, Saccoglossus

2. Salpa, Doliolum

3. Petromyzon, Myxine

4. Dentalium, Chaetopleura

Similarity between protochordata and hemichordata is
1. Presence of notochord.
2. Exclusively marine.
3. Dorsal hollow and single central nervous system.
4. Exclusively parasitic.

Vertebrates and seastars may seen as different as two
animal groups can be, yet they share
1. The same type of body symmetry as adults.
2. A high degree of cephalization.
3. Certain developmental pattern, including the type
of coelom formation.
4. The presence of endoskeleton that include
cranium

All the following are present in sponges, except
1. Spicules
2. Choanocytes
3. A digestive tract
4. Sexual and / or asexual reproduction

Find out the correct match from the following table:-

1. (i) only 
2. (i) and (ii)
3. (iii) only
4. (ii) and (iii)