Phylum Annelida
Phylum Annelida: Overview
This Topic covers sub-topics such as Nereis, Hirudinaria, Nephridia, Pheretima, Phylum Annelida, Class Polychaeta, Class Oligochaeta, Paddle Worm and, Class Archiannelida
Important Questions on Phylum Annelida
Chloragogen cells of earthworm are similar to which organ of vertebrates?
Paired spermathecae occur in Pheretima in which of the following segments?
The connecting link between annelida and mollusca is
Assertion: Hirudinaria and Pterophyllum both have closed circulatory system.
Reason: In closed circulatory system blood pumped by heart is always circulated through a network of blood vessels.
Study the following statements regarding unisexual annelids.
I) These are bristle worms
II) Gonoducts are present
III) Head is distinct with sense organs
IV) Internal fertilisation
The correct statements are
Read the following and find out the correct combinations
Which one of the following is not a characteristic feature of phylum Annelida?
Metameric segmentation is a characteristic feature of:
Clitellum in the Earthworm is present in the 13-15 segments.
Pheretima belongs to which class of Annelida?
Identify the picture and name the organism.
What is the difference between the segmentation of a tapeworm and an earthworm?
In which class, parapodia are observed?
Chloragogen cells of earthworm are similar to the organ of vertebrate's
Note the following:
A. It is a fresh water, metamerically segmented protostome
B. The clitellum is absent
C. It is unisexual
D. Its larval form is Trochophore
E. The nervous system is found in the epidermis
Which of the above is true of "paddle worm"
Match the columns and choose the correct combination.
| A. | Polychaeta | p. | Scorpion |
| B. | Trematoda | q. | Pila |
| C. | Arachnida | r. | Liver Fluke |
| D. | Gastropoda | s. | Nereis |
| t. | Star Fish |
The animal which does not show any metamorphosis of larval stage is
