Which one of the following organisms bears hollow and pneumatic long bones?
1. Macropus
2. Ornithorhynchus
3. Neophron
4. Hemidactylus
| 1. | hollow bones |
| 2. | ectothermy |
| 3. | high metabolic rate |
| 4. | reptilian-like scales on legs |
Match the following group of organisms with their respective distinctive characteristics and select the correct option:
|
Organisms |
Characteristics |
||
|
(a) |
Platyhelminthes |
(i) |
Cylindrical body with no segmentation |
|
(b) |
Echinoderms |
(ii) |
Warm blooded animals with direct development |
|
(c) |
Hemichordates |
(iii) |
Bilateral symmetry with incomplete digestive system |
|
(d) |
Aves |
(iv) |
Radial symmetry with indirect development |
| Options: | (a) | (b) | (c) | (d) |
| 1. | (iii) | (iv) | (i) | (ii) |
| 2. | (ii) | (iii) | (iv) | (i) |
| 3. | (iv) | (i) | (ii) | (iii) |
| 4. | (i) | (ii) | (iii) | (iv) |
Which among these is the correct combination of aquatic mammals?
1. Dolphin, Seals, Trygon
2. Whales, Dolphin, Seals
3. Trygon, Whales, Seals
4. Seals, Dolphin, Sharks
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) |