What would not be true for cyclostomes?
1. | All are endoparasites on some fishes. |
2. | They have aa circular mouth without jaw. |
3. | Body is devoid of scales and paired fins. |
4. | Circulation is of closed type. |
Homoiothermy and a four chambered muscular heart is seen in:
I: | Mammals |
II: | Crocodiles |
III: | Birds |
1. Only I and II
2. Only I and III
3. Only II and III
4. I, II and III
1. | marine bony fish |
2. | fresh water bony fish |
3. | cartilaginous fish |
4. | cyclostome |
Unlike roundworms, flatworms:
1. are triploblastic
2. exhibit bilateral symmetry
3. do not have a coelom
4. reproduce only by sexual methods
1. | is a cestode and requires two intermediate hosts – a cow and a pig |
2. | is a trematode and requires two intermediate hosts – a chicken and a fish |
3. | is a nematode and requires two intermediate hosts – a fish and a pig |
4. | is a trematode and requires two intermediate hosts – a snail and a fish |
Regarding birds, the number of correct statements from the statements given will be:
I: | The forelimbs are modified into wings. |
II: | Flightless birds do not have feathers. |
III: | Skin is dry without glands except the oil gland at the base of the tail. |
IV: | Endoskeleton is fully ossified (bony) and the long bones are hollow with air cavities (pneumatic). |
V: | The hind limbs generally have scales. |
1. 2
2. 3
3. 4
4. 5
List I | List II | ||
A. | Taenia | I. | Nephridia |
B. | Paramoecium | II. | Contractile vacuole |
C. | Periplaneta | III. | Flame cells |
D. | Pheretima | IV. | Urecose gland |
Options: | A | B | C | D |
1. | II | I | IV | III |
2. | I | II | III | IV |
3. | I | II | IV | III |
4. | III | II | IV | I |
1. | Echinodermata D | 2. | Ctenophora |
3. | Hemichordata | 4. | Coelenterata |