Match Nematode with their common names and choose answer from codes given below:

	Nematode		Common names
I.	Ancylostoma duodenale	1.	Pin worm
II.	Enterobius vermicularis	2.	Filaria worm
III.	Trichuris trichiura	3.	Loa loa
IV.	Dracunculus medinensis	4.	Whip worm
V.	Onchocerca volvulus	5.	Hook worm
VI.	Wuchereria bancrofti	6.	Guinea worm

Codes:

	I.	II.	III.	IV.	V.	VI.
1.	5	1	4	6	3	2
2.	5	4	3	6	1	2
3.	5	3	4	1	6	2
4.	5	6	4	3	1	2

What is the most important reason for the immense success of arthropods?

1. Chitinous exoskeleton

2. Uricotelic nature

3. Compound eye

4. Multipurpose appendages

What is not true for a generalized mollusc?

How many of the characters given below are true for echinoderms?

1. 3
2. 4
3. 5
4. 6

Which of the following is not seen in hemichordates?

1. A tripartite body organization

2. Stomochord

3. Rudimentary notochord

4. Proboscis gland

Consider the following features:

I. Ampulla of Lorenzini

II. Operculum or gill cover

III. Ureotelism

IV. Viviparity

V. Swim bladder

VI. Lateral line system

The features that can be attributed to cartilaginous fishes are:

1. I, III and IV only

2. II, V and VI only

3. I, II, III and IV

4. All

Key features that appeared for the first time in amphibians do not include:

1. Legs

2. Nutritional deficiencies

3. Lungs

4. Pulmonary veins

Consider the following characters:
 

Which of these are unique to birds?

Identify the incorrectly matched pair:

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

Codes

             (a)  (b)  (c)  (d)  (e) 

1.          (i)  (ii)  (iii)  (iv)  (v) 

2.          (iv)  (iii)  (ii)  (i)  (v)   

3.          (iv)  (iii)  (i)  (v)  (ii)

4.          (iii)  (ii)  (i)  (v)  (iv)