
Biradial symmetry is found in which phylum ?

Important Questions on Animal Kingdom



Match the following.
Sub Division | Character | Example | |||
Acoelomata | Coelom is formed by archenteron | Mollusca | |||
Pseudocoelomata | Without a body cavity | Hemichordata | |||
Schizocoelomata | Body cavity should not lined by mesodermal layers | Nematoda | |||
Enterocoelomate | Coelom is formed by splitting of mesoderm | Platyhelminthes |


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 |


Which of the following phyla possess body cavity as shown in the diagram below?

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


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:

Which of the following may exhibits biradial symmetry?

______ is the study of internal structures of an organism.

Which of the following has biradial sysmmetry?

The type of symmetry belongs to animals is

True segmentation (metameric) occurred for the first time in

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

Pseudocoelomate animals belong to the phylum

