The structure shown in the given diagram is characteristically seen in the Phylum:

  
1. Porifera
2. Ctenophora
3. Cnidaria
4. Molluska

The character that gives the Phylum Chordata its name is shown by:

1. A

2. B

3. C

4. D

In Planaria, waste material of food digestion and Nitrogenous waste material removed from

1. Mouth and mouth

2. Body wall and body wall

3. Mouth and Flame-cell

4. Mouth and Body wall

Which one of the following is not the function of cnidoblasts (sting cell)?

1. Anchorage

2. Defense

3. Caputure of prey

4. Reproduction

Open circulatory system is present in ?

1. Nereis

2. Ascidia

3. Octopus

4. Branchiostoma

Identify the following diagrams and these represent:

1. (a) radial symmetry, (b) bilateral symmetry

2. (a) bilateral symmetry, (b) radial symmetry

3. (a) asymmetrical, (b) radial symmetry

4. (a) bilateral symmetry, (b) asymmetrical

Bioluminescence is well marked in member of which phylum?

1. Porifera

2. Echinodermata

3. Ctenophora

4. Platyhelminthes

Correct flow water current in sponges is:-

1. Ostia $\to$Osculum$\to$Spongocoel$\to$Outside

2. Osculum$\to$Spongocoel$\to$Ostia$\to$Outside

3. Ostia$\to$Spongocoel$\to$Osculum$\to$Outside

4. Osculum$\to$Ostia$\to$Spongocoel$\to$Outside

Tube within a tube plan is found in

1. Coelenterata

2. Ctenophora

3. Platyhelminthes

4. Aschelminthes

Which of the following is not correct comparison between Locusta (A) and Prawn (B), illustrated in the following diagram?

1. 1

2. 2

3. 3

4. 4