Basic Science : Vertebrata Agnatha Pisces QUESTIONS AND ANSWERS :: part2 : 21 to 25
Following Basic Science multiple choice objective type questions and answers will help you in many types of 2024 job and other entrance examinations :
21.Rabbit Fish Chimaera is connecting link between |
| Cartilaginous and bony fishes |
| Bony fishes and lung fishes |
| Lung fishes and amphibians |
| Cyclostomates and chondrichthyes |
22.Scroll valve is present in |
| Respiratory system of cartilaginous fishes |
| Intestine of cartilaginous fishes |
| Intestine of bony fishes |
| Respiratory system of bony fishes |
23.Hippocampus has |
| Head at right angles to body |
| Prehensile tail |
| Only dorsal fin and reduced pectoral fins |
| All the above |
24.In Torpedo or Electric Ray the electric organs are modified |
| Nerve nets |
| Cartilage complexes |
| Branchial muscles |
| Respiratory centres |
25.Latimeria swims by means of |
| Flapping movement of its pectoral and pelvic fins |
| Rotational movement of its pectoral fins |
| Flapping movement of pectoral fins and rotational movement of pelvic fins |
| Rotational movement of tail fin |
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