In the diploblastic animals:
Important Questions on Animal Kingdom
Match the following and choose correct combination.
| Column I | Column II | ||
| i) | Cellular grade level | a) | Pheretima |
| ii) | Tissue grade level | b) | Schistosoma |
| iii) | Organ level | c) | Obelia |
| iv) | Organ system level | d) | Sycon |
| Column-I | Column-II | ||
| P | Mollusca | i | Pseudocoelom |
| Q | Annelida | ii | Radula |
| R | Nematoda | iii | Radial symmetry |
| S | Echinodermata | iv | Segmentation |
Choose the CORRECT combination.
Match the following
| List - I | List - II | ||
| (a) | Asymmetry | (i) | Cnidaria |
| (b) | Radial symmetry | (ii) | Platyhelminthes |
| (c) | Bilateral symmetry and Enterocoelom | (iii) | Porifera |
| (d) | Bilateral symmetry without body cavity | (iv) | Hemichordata |
The correct answer is
Which of the following phyla possess body cavity as shown in the diagram below?
Consider following features:
- Organ system level of organisation
- Bilateral symmetry
- True coelomates with segmentation of body.
Select the correct option of animal group which possess all the above characteristics:
A bilaterally symmetrical animal can be divided into mirror images by
The coelom not lined by mesoderm and directly connected to the archenteron is found in
The evolution of an internal body cavity was an important improvement in animal body design in which area?
Cell aggregate plan is found in
True segmentation (metameric) occurred for the first time in
Heteronomous segmentation, i.e., the division of labour resulting in dissimilarity of the metameres of the different regions of the body, is found in the phyla
Cell aggregate plan is found in:
A coelom (body cavity) derived from blastocoel is known
In which of the following symmetry, the response to external stimulus is quicker and more precise?
Metamerism is characteristic of
______ is the study of internal structures of an organism.
True segmentation (metameric) occurred for the first time in
