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 |
To unlock all the explanations of this course, you need to be enrolled.
To unlock all the explanations of this course, you need to be enrolled.
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 |
To unlock all the explanations of this course, you need to be enrolled.
To unlock all the explanations of this course, you need to be enrolled.
Which of the following is not a character of deuterostomes?
| 1. | Radial cleavage |
| 2. | Schizocoelous coelom |
| 3. | Indeterminate cleavage |
| 4. | Blastopore forms anus |
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
Approximately what percentage of existing animal species are invertebrates?
| 1. | 20% | 2. | 50% |
| 3. | 70% | 4. | 95% |
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
Identify the incorrectly matched pair:
|
Phylum |
Characteristic |
|
|
1. |
Porifera |
Water vascular system |
|
2. |
Ctenophora |
Bioluminescence |
|
3. |
Molluska |
Radula |
|
4. |
Annelida |
Closed circulatory system |
To unlock all the explanations of this course, you need to be enrolled.
To unlock all the explanations of this course, you need to be enrolled.
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 |
To unlock all the explanations of this course, you need to be enrolled.
To unlock all the explanations of this course, you need to be enrolled.
The animals belonging to all the following groups are exclusively marine except:
| 1. | Ctenophora | 2. | Porifera |
| 3. | Protochordata | 4. | Echinodermata |
To unlock all the explanations of this course, you need to be enrolled.
To unlock all the explanations of this course, you need to be enrolled.
Match the following organism with their respective characteristics:
| (a) | Pila | (i) | Flame cells |
| (b) | Bombyx | (ii) | Comb plates |
| (c) | Pleurobrachia | (iii) | Radula |
| (d) | Taenia | (iv) | Malpighian tubules |
| (a) | (b) | (c) | (d) | |
| 1. | (iii) | (ii) | (iv) | (i) |
| 2. | (iii) | (ii) | (i) | (iv) |
| 3. | (iii) | (iv) | (ii) | (i) |
| 4. | (ii) | (iv) | (iii) | (i) |
© 2024 GoodEd Technologies Pvt. Ltd.