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 |