Which of the following structure is associated with
locomotion ?
| (i) | Parapodia. |
| (ii) | Water vascular system. |
| (iiii) | Radula. |
| (iv) | Proboscis. |
1. (i), (ii), (iii), (iv)
2. (i) only
3. (i), (ii) only
4. (i), (iii) only
Bony endoskeleton is present in
(i) Pristis
(ii) Hippocampus
(iii) Icthyophis
(iv) Myxine
| 1. | (i), (ii), (iii), (iv) |
| 2. | (ii), (iii) only |
| 3. | (ii) only |
| 4. | (ii), (iii), (iv) only |
Match the organism in Column-I with its excretory structure in Column-II
|
Column-I |
Column-II |
||
|
(A) |
Cockroach |
(p) |
Nephridia |
|
(B) |
Earthworm |
(q) |
Proboscis gland |
|
(C) |
Balanoglossus |
(r) |
Kidney |
|
(D) |
Clarias |
(s) |
Malpighian tubules |
1. (A)(s),(B)(p),(C)(q),(D)(r)
2. (A)(s),(B)(p),(C)(r),(D)(q)
3. (A)(q),(B)(p),(C)(r), (D)(s)
4. (A)(s), (B)(q),(C)(r),(D)(p)
Which one of the following sets of animals belong to a single taxonomic group?
1. Cuttlefish, jellyfish, silverfish, dogfish, starfish
2. Bat, pigeon, butterfly
3. Monkey, chimpanzee, man
4. Silkworm, tapeworm, earthworm
Select the correct statement about class-Aves
| 1. | They are warm blooded (homoiothermous) animals and are able to maintain a constant body temperature |
| 2. | Respiration occurs through lungs and air sacs connected to lungs for supplement respiration |
| 3. | They are oviparous with separate sexes, internal fertilisation and direct development |
| 4. | All of the above |
The animals belonging to all the following groups are exclusively marine except:
| 1. | Ctenophora |
| 2. | Porifera |
| 3. | Protochordata |
| 4. | Echinodermata |
A land snail, a clam, and an octopus all share
1. a mantle
2. calcareous shell
3. a radula
4. distinct cephalization
Which of the following combinations of phylum and description is incorrect?
| 1. | Echinodermata–branch Bilateria, coelom from archenteron |
| 2. | Nematoda–roundworms, pseudocoelomate |
| 3. | Cnidaria–radial symmetry, polyp and medusa body forms |
| 4. | Porifera - gastrovascular cavity, mouth from blastopore |
Match Column-I with Column-II and choose the correct option
| Column-I | Column-II | ||
| a. | A vector of disease | (i) | Bombyx |
| b. | A gregarious pest | (ii) | Limulus |
| c. | A living fossil | (iii) | Locusta |
| d. | An economically important | (iv) | Culex insect |
| 1. | a(iii), b(ii), c(i), d(iv) |
| 2. | a(i), b(ii), c(iii), d(iv) |
| 3. | a(ii), b(iv), c(iii), d(i) |
| 4. | a(iv), b(iii), c(ii), d(i) |
Which of the following set of animals belong the phylum hemichordate?
1. Balanoglossus, Saccoglossus
2. Salpa, Doliolum
3. Petromyzon, Myxine
4. Dentalium, Chaetopleura