Consider the following statements:

Chordates-

I.	Possess a solid, single and ventral nerve cord
II.	Have pharyngeal gill slits at some point during their development.
III.	Have post-anal tail

 

Which of the above statements are true?

1 I and II only

2. I and III only

3. II and III only

4. I, II and III

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

Column I       Column II
(animal)        (phylum)
I. Loligo       1. Mollusca
II. Ophiura   2. Echinodermata
III. Beroe     3. Cnidaria
IV. Adamsia  4. Ctenophora

Codes:

  I II III IV

1. 1 2 3 4

2. 2 1 4 3

3. 2 1 3 4

4. 1 2 4 3

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

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

Codes:

In case of poriferans, the spongocoel is lined with flagellated cells called

1. ostia

2. oscula

3. choanocytes

4. mesenchymal cells

Choose the correct statements.

Which of the following characteristic features always holds true for the corresponding group of animals?

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

(1) Metameric segmentation

(2) Parapodia

(3) Jointed appendages

(4) Chitinous exoskeleton

Planaria posses high capacity of

(1) metamorphosis

(2) regeneration

(3) alternation of generation

(4) bioluminescence

A marine cartilaginous fish that can produce electric current is

(1) Pristis

(2) Torpedo

(3) Trygon

(4) Scoliodon