- 1(current)
Q. No.Choose the correct statements.
| 1. | All mammals are viviparous |
| 2. | All cyclostomes do not possess jaws and paired fins |
| 3. | All reptiles have a three-chambered heart |
| 4. | All Pisces have gills covered by an operculum |
Which one of the following pairs of animal comprises ‘jawless fishes’?
(1) Lampreys and eels
(2) Mackerels and rohu
(3) Lampreys and hag fishes
(4) Guppies and hag fishes
A jawless fish, which lays eggs in fresh water and whose ammocoetes larvae after metamorphosis return to the ocean is
(1) Eptatretus
(2) Exocoetus
(3) Neomyxine
(4) Petromyzon
All cyclostomes are ___________ on some fishes; paired fins are _________, cranium is ________ and circulation is _______ type.
| 1. | Ectoparasites, Absent, Cartilaginous, Open |
| 2. | Endoparasites, Present, Bony, Closed |
| 3. | Ectoparasites, Absent, Cartilaginous, Closed |
| 4. | Ectoparasites, Present, Cartilaginous, Open |
1. Symbiotic
2. Ectoparasite
3. Free living
4. Endoparasite
Select the correct option in respect of characteristics
of each group :-
|
Cyclostomes |
Chondrichthyes |
Osteichthyes |
|
|
(i) |
Marine |
Marine, Fresh water |
Marine |
|
(ii) |
Sucking mouth |
Ventral mouth |
Terminal mouth |
|
(iii) |
6-15 Pairs of Gills |
5-7 Pairs of Gills |
4 Pairs of Gills |
|
(iv) |
Placoid scales |
Cycloid Scales |
Ctenoid/ Ganoid |
| 1. | (i), (ii) are correct. |
| 2. | (i), (iii), (iv) are correct. |
| 3. | (ii), (iii) are correct. |
| 4. | (ii), (iii), (iv) are correct. |
Which of the following does not come under the Class Mammals?
(1) Flying fox
(2) Hedgehog
(3) Manatee
(4) Lamprey
Match the following columns and select the correct option :
| Column I | Column II | ||
| (a) | Aptenodytes | (i) | Flying fox |
| (b) | Pteropus | (ii) | Angel fish |
| (c) | Pterophyllum | (iii) | Lamprey |
| (d) | Petromyzon | (iv) | Penguin |
| Options: | (a) | (b) | (c) | (d) |
| 1. | (iii) | (iv) | (ii) | (i) |
| 2. | (iii) | (iv) | (i) | (ii) |
| 3. | (iv) | (i) | (ii) | (iii) |
| 4. | (ii) | (i) | (iv) | (iii) |
- 1(current)
Q. No.
© 2025 GoodEd Technologies Pvt. Ltd.