- 1(current)
Q. No.The number of correct statements amongst the given statements is:
| I. | The digestive system in Platyhelminthes is incomplete. |
| II. | Coelenterates, Ctenophores, and Echinoderm larvae are radially symmetrical. |
| III. | Bilateral symmetry is seen in annelids and arthropods but not in mollusks. |
| IV. | Notochord is a mesodermally derived structure formed on the dorsal side in some animals. |
| V. | Aschelminthes are pseudocoelomates |
1. 2
2. 3
3. 4
4. 5
Subtopic: Â Basis of Classification |
 56%
Level 3: 35%-60%
Hints
Match List I with List II:
Choose the correct answer from the options given below:
1. A-II, B-I, C-III, D-IV
2. A-III, B-I, C-II, D-IV
3. A-II, B-I, C-IV, D-III
4. A-I, B-II, C-III, D-IV
| List I | List II |
| A. Coelomates | I. Aschelminthes |
| B. Pseudocoelomates | II. Platyhelminthes |
| C. Acoelomates | III. Annelids |
| D. Diploblastic | IV. Coelenterates |
1. A-II, B-I, C-III, D-IV
2. A-III, B-I, C-II, D-IV
3. A-II, B-I, C-IV, D-III
4. A-I, B-II, C-III, D-IV
Subtopic: Â Basis of Classification |
 86%
Level 1: 80%+
Hints
What is/are the advantage(s) of coelom?
| 1. | Can absorb shock or provide a hydrostatic skeletal system |
| 2. | Less freedom for movement |
| 3. | Allows organ to expand |
| 4. | Both (1) and (3) |
Subtopic: Â Basis of Classification:I |Â Basis of Classification:II |Â Basis of Classification |
 90%
Level 1: 80%+
Hints
Read the following statements for the first triploblastic animals (w.r.t. evolution)
i. Possess coelom
ii. Are acoelomate
iii Are pseudocoelomate
iv. Possess protonephridia
v. Cephalisation begins
vi. Is exemplified by Planaria
Which of the following statements corresponds to these animals?
1. i, ii, iii
2. i, ii, iii, iv, v, vi
3. ii, iv, v, vi
4. i and iii
i. Possess coelom
ii. Are acoelomate
iii Are pseudocoelomate
iv. Possess protonephridia
v. Cephalisation begins
vi. Is exemplified by Planaria
Which of the following statements corresponds to these animals?
1. i, ii, iii
2. i, ii, iii, iv, v, vi
3. ii, iv, v, vi
4. i and iii
Subtopic: Â Basis of Classification:I |Â Basis of Classification:II |Â Basis of Classification |
 80%
Level 1: 80%+
Hints
- 1(current)
Q. No.
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