Which one of the following organisms bears hollow and pneumatic long bones?
1. Macropus
2. Ornithorhynchus
3. Neophron
4. Hemidactylus
Read the following statements.
(a) | Metagenesis is observed in Helminths. |
(b) | Echinoderms are triploblastic and coelomate animals. |
(c) | Round worms have organ-system level of body organization. |
(d) | Comb plates present in ctenophores help in digestion. |
(e) | Water vascular system is characteristic of Echinoderms. |
Choose the correct answer from the options given below:
1. (a), (d) and (e) are correct
2. (b), (c) and (e) are correct
3. (c), (d) and (e) are correct
4. (a), (b) and (c) are correct
Match the following
List-I | List-II | ||
(a) | Physalia | i. | Pearl oyster |
(b) | Limulus | ii. | Portuguese Man of War |
(c) | Ancylostoma | iii. | Living fossil |
(d) | Pinctada | iv. | Hookworm |
Choose the correct answer from the options given below:
Options: | (a) | (b) | (c) | (d) |
1. | ii | iii | iv | i |
2. | i | iv | iii | ii |
3. | ii | iii | i | iv |
4. | iv | i | iii | ii |
Match List - I with List - II
List-I | List-II |
(a) Metamerism | (i) Coelenterata |
(b) Canal system | (ii) Ctenophora |
(c) Comb Plates | (iii) Annelida |
(d) Cnidoblasts | (iv) Porifera |
Choose the correct answer from the options given below:
Options: | (a) | (b) | (c) | (d) |
1. | iii | iv | ii | i |
2. | iv | i | ii | iii |
3. | iv | iii | i | ii |
4. | iii | iv | i | ii |
The similarity between Ascaris lumbricoides and Anopheles stephensi is:
1. Sexual dimorphism
2. Metamerism
3. Anaerobic respiration
4. Endoparasitism
The figure shows four animals (a), (b), (c) and (d). Select the correct answer with respect to a common characteristic of two of these animals:
(a) | (b) | ||
(c) | (d) |
1. (c) and (d) have a true coelom
2. (a) and (d) respire mainly through body wall
3. (b) and (c) show radial symmetry
4. (a) and (b) have cnidoblasts for self-defence
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 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) |
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 of the following options correctly represent the characteristic features of phylum Annelida?
1. | Triploblastic, unsegmented body, and bilaterally symmetrical. |
2. | Triploblastic, a segmented body, and bilaterally symmetrical. |
3. | Triploblastic, flattened body, and acoelomate condition. |
4. | Diploblastic, mostly marine and radially symmetrical. |