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 |