10
MCQ (Single Correct Answer)
Which one of the following is not a poisonous snake?
A
Cobra
B
Viper
C
Python
D
Krait
11
MCQ (Single Correct Answer)
Match the following list of animals with their level of organisation.
| Division of Labour | Animal | ||
|---|---|---|---|
| (i) | Organ level | A. | Pheretima |
| (ii) | Cellular aggregate level | B. | Fasciola |
| (iii) | Tissue level | C. | Spongilla |
| (iv) | Organ system level | D. | Obelia |
Choose the correct match showing division of labour with animal example.
A
(i)-B, (ii)-C, (iii)-D and (iv)-A
B
(i)-B, (ii)-D, (iii)-C and (iv)-A
C
(i)-D, (ii)-A, (iii)-B and (iv)-C
D
(i)-A, (ii)-D, (iii)-C and (v)-B
12
MCQ (Single Correct Answer)
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.
A
Acoelomate
B
Pseudocoelomate
C
Coelomate
D
Haemocoelomate
13
MCQ (Single Correct Answer)
Match the column I with column II and choose the correct option.
| Division of Labour | Animal | ||
|---|---|---|---|
| A. | Porifera | 1. | Canal system |
| B. | Aschelminthes | 2. | Water vascular system |
| C. | Annelida | 3. | Muscular Pharynx |
| D. | Arthropoda | 4. | Jointed appendages |
| E. | Echinodermata | 5. | Metameres |
A
A-2, B-3, C-5, D-4, E-1
B
A-2, B-5, C-3, D-4, E-1
C
A-1, B-3, C-5, D-4, E-2
D
A-1, B-5, C-3, D-4, E-2
14
Identify the phylum in which adults exhibit radial symmetry and larva exhibit bilateral symmetry.
Explanation
Symmetry is an attribute of an organism showing regularity in body parts on a plane or around an axis.
In Phylum Echinodermata, the adult echinoderms are radially symmetrical but the larvae are bilaterally symmetrical.