Select Question Set:
Q. No.The structures shown in the given diagram in a cartilaginous fish are:
1. Mechanoreceptors
2. Thermoreceptors
3. Electroreceptors
4. Thigmoreceptors
2. Thermoreceptors
3. Electroreceptors
4. Thigmoreceptors
Subtopic: Comparative study of Cartilagenous & Bony Fishes | Class Chondrichthyes |
Identify the incorrect statement regarding cyclostomes:
| 1. | Lampreys have direct development, but Hagfishes go through a larval stage followed by metamorphosis into a juvenile form. |
| 2. | Unlike jawed vertebrates, which have three semicircular canals in each inner ear, lampreys have only two and hagfishes just one. |
| 3. | The hagfish blood is isotonic with seawater, while lampreys appear to use the same gill-based mechanisms of osmoregulation as marine teleosts. |
| 4. | Both hagfishes and lampreys have a single gonad. |
Subtopic: General Introduction: Vertebrates & Agnatha | Class Cyclostomata |
58%
Which of the following is a ‘fish’ in true taxonomic sense?
1. Shellfish
2. Lungfish
3. Cuttlefish
4. Crayfish
Subtopic: Comparative study of Cartilagenous & Bony Fishes | Class Osteichthyes |
Nematodes lack:
1. A body cavity
2. Collagenous cuticle
3. Circumferential muscles in body wall
4. A hydrostatic skeleton
Subtopic: Phylum Aschelminthes |
Rhabdom is a part of:
| 1. | the compound eye of an arthropod |
| 2. | the protonepohridia of flatworms |
| 3. | the second stage larva of mollusks |
| 4. | water vascular system of echinoderms |
Subtopic: Phylum Arthropoda |
The following schematic diagram of a part of skeleton can be that of a/an:
| 1. | Amphibian | 2. | Reptile |
| 3. | Bird | 4. | Mammal |
Subtopic: Study of Aves & Mammals |
78%
Ospharidia in mollusks are:
| 1. | Chemical sensors | 2. | Balancing receptors |
| 3. | Photoreceptors | 4. | Chromatophores |
Subtopic: Phylum Mollusca |
Subtopic: Comparative study of Cartilagenous & Bony Fishes |
Tagmatization, a feature of many arthropods, is:
| 1. | Presence of simple and compound eyes in the same animal |
| 2. | The process of moulting of exoskeleton during growth |
| 3. | Fusion of segments |
| 4. | Modification of mouth parts |
Subtopic: Phylum Arthropoda |
Subtopic: Study of Reptilia |
55%
Select Question Set:
© 2025 GoodEd Technologies Pvt. Ltd.