Which one of the following pairs of animals are similar to each other pertaining to the feature stated against them?
| 1. | Pteropus and Ornithorhynchus– Viviparity |
| 2. | Garden lizard and Crocodile - Three chambered heart |
| 3. | Ascaris and Ancylostoma - Metameric segmentation |
| 4. | Sea horse and Flying fish - Cold blooded (poikilothermal) |
Which one of the following categories of animals, is correctly described with no single exception in it?
| 1. | All reptiles possess scales, have a three chambered heart and are cold blooded (poikilothermal). |
| 2. | All bony fishes have four pairs of gills and an operculum on each side. |
| 3. | All sponges are marine and have collared cells. |
| 4. | All mammals are viviparous and possess diaphragm for breathing. |
Air bladder is found in:
| 1. | Osteichthyes | 2. | Aves |
| 3. | Cyclostomata | 4. | Chondrichthyes |
Air bladder is found in :
| 1. | Osteichthyes | 2. | Aves |
| 3. | Cyclostomata | 4. | Chondrichthyes |