Which of the following is correct about metamerism (true segmentation)?
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:
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?
A bilaterally symmetrical animal can be divided into mirror images by
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
Tissue grade of organisation originated from
A coelom (body cavity) derived from blastocoel is known
In which of the following organ system level of organisation is observed?
Metamerism is characteristic of
______ is the study of internal structures of an organism.
The blind sac body plan is shown by
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
