Q. No.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)
All vertebrates are chordates but all chordates are not vertebrates, why?
| 1. | Notochord is replaced by a vertebral column in the adults of some chordates. |
| 2. | The ventral hollow nerve cord remains throughout life in some chordates. |
| 3. | All chordates possess a vertebral column. |
| 4. | All chordates possess notochords throughout their lives. |
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) |
Match the column I with column II and choose the correct option.
|
Column I |
Column II |
|
A. Porifera B. Aschelminthes C. Annelida D. Arthropoda E. Echinodermata |
1. Canal system 2. Water vascular system 3. Muscular Pharynx 4. Jointed appendages 5. Metameres |
Codes
Match options table format (options)
| Options: | A | B | C | D | E |
| 1. | 2 | 3 | 5 | 4 | 1 |
| 2. | 2 | 5 | 3 | 4 | 1 |
| 3. | 1 | 3 | 5 | 4 | 2 |
| 4. | 1 | 5 | 3 | 4 | 2 |
Body cavity is the cavity present between body wall and gut wall. In some animals the body cavity is not lined by mesoderm. Such animals are called.
1. Acoelomate
2. Pseudocoelomate
3. Coelomate
4. Haemocoelomate
| Animal | Division of Labour |
| i. Pheretima ii. Fasciola iii. Spongilla iv. Obelia |
A. Organ level B. Cellular aggregate level C. Tissue level D. Organ system level |
1. (i)-B, (ii)-C,(iii)-D and (iv)-A
2. (i)-B, (ii)-D,(iii)-C and (iv)-A
3. (i)-D, (ii)-A, (iii)-B and (iv)-C
4. (i)-A,(ii)-D,(iii)-C and (v)-B
Which one of the following statements is incorrect?
1. In cockroaches and prawns, excretion of waste material occurs through Malpighian tubules.
2. In ctenophores, locomotion is mediated by comb plates.
3. In Fasciola, flame cells take part in excretion.
4. Earthworms are hermaphrodites and yet cross-fertilization takes place among them.
Which one of the following statements is incorrect?
| 1. | Mesoglea is present in between ectoderm and endoderm in Obelia |
| 2. | Asterias exhibits radial symmetry |
| 3. | Fasciola is a pseudocoelomate animal |
| 4. | Taenia is a triploblastic animal |
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