- 1(current)
Q. No.Parazoa is a taxon at the base of the phylogenetic tree of the animal kingdom and includes the most primitive forms, characterized by not having proper tissues. The phylum/phyla included in this taxon will be:
| I. Porifera | II. Cnidaria | III. Ctenophora |
| 1. | Only I | 2. | Only II and III |
| 3. | Only I and II | 4. | I, II and III |
Subtopic: Phylum Porifera | Basis of Classification |
81%
Level 1: 80%+
Hints
In metamerism, there is serial repetition of unit subdivisions of:
| I. | Ectoderm products |
| II. | Mesoderm products |
| III. | Endoderm products |
| 1. | Only II | 2. | Only I and II |
| 3. | Only II and III | 4. | I, II and III |
Subtopic: Basis of Classification |
Level 4: Below 35%
Hints
Which of the following is not a character of deuterostomes?
| 1. | Radial cleavage |
| 2. | Schizocoelous coelom |
| 3. | Indeterminate cleavage |
| 4. | Blastopore forms anus |
Subtopic: Basis of Classification:I | Basis of Classification |
Level 3: 35%-60%
Hints
Radially symmetrical animals:
| 1. | Are all triploblastic |
| 2. | Tend to be sessile and passively floating |
| 3. | Have a definite head and a brain |
| 4. | Have an anterior and a posterior end |
Subtopic: Basis of Classification |
79%
Level 2: 60%+
Hints
Approximately what percentage of existing animal species are invertebrates?
| 1. | 20% | 2. | 50% |
| 3. | 70% | 4. | 95% |
Subtopic: Basis of Classification |
73%
Level 2: 60%+
Hints
Identify the correct statement:
| 1. | All pseudocoelomates are protostomes |
| 2. | All bilaterally symmetrical animals have a coelom |
| 3. | All animals have at least a tissue grade organization |
| 4. | All radially symmetrical animals are diploblastic |
Subtopic: Basis of Classification |
51%
Level 3: 35%-60%
Hints
Match the following list of animals with their level of organization.
| Division of Labour | Animal | ||
| A. | Organ level | i. | Pheritima |
| B. | Cellular aggregate level | ii. | Fasciola |
| C. | Tissue level | iii. | Spongilla |
| D. | Organ system level | iv. | Obelia |
Choose the correct match showing division of labour with animal example:
| i | ii | iii | iv | |
| 1. | B | C | D | A |
| 2. | B | D | C | A |
| 3. | D | A | B | C |
| 4. | A | D | C | B |
Subtopic: Phylum Porifera | Phylum Coelenterata | Phylum Ctenophora | Phylum Aschelminthes | Phylum Annelida | Phylum Arthropoda | Phylum Mollusca | Phylum Echinodermata | Phylum Hemichordata | General Introduction: Vertebrates & Agnatha |
87%
Level 1: 80%+
Hints
- 1(current)
Q. No.
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