From the following statements, select the wrong one:
| 1. | Prawn has two pairs of antennae |
| 2. | Millipedes have two pairs of appendages in each segment of the body |
| 3. | Animals belonging to the phylum Porifera are exclusively marine |
| 4. | Nematocysts are characteristic of the phylum Cnidaria |
Which one of the following statements about all the four - Spongilla, Leech, Dolphin, Penguin - is correct?
| 1. | Leech is a freshwater form while all others are marine. |
| 2. | Spongilla has special collar cells called choanocytes, not found in the remaining three. |
| 3. | All are bilaterally symmetrical. |
| 4. | Penguin is homeothermic while the remaining three are poikilothermic. |
Match List - I with List - II
| List - I | List - II | ||
| (a) | Metamerism | (i) | Coelenterata |
| (b) | Canal system | (ii) | Ctenophora |
| (c) | Comb Plates | (iii) | Annelida |
| (d) | Cnidoblasts | (iv) | Porifera |
Choose the correct answer from the options given below.
| (a) | (b) | (c) | (d) | |
| 1. | (iii) | (iv) | (ii) | (i) |
| 2. | (iv) | (i) | (ii) | (iii) |
| 3. | (iv) | (iii) | (i) | (ii) |
| 4. | (iii) | (iv) | (i) | (ii) |
Body having meshwork of cell, internal cavities lined with food filtering flagellated cells and indirect development are the characteristics of phylum:
| 1. | Porifera | 2. | Mollusca |
| 3. | Protozoa | 4. | Coelenterate |