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प्रश्न
Give an account on phylum Annelida.
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उत्तर
- The animals in phylum annelida are segmented worms.
- Example: Earth worms, Leeches and a group of marine worms.
- Segmented body shows metamerism which means the property of having repeated homologous organs in each segment.
- The animals possess body cavity called coelom.
- Some organisms show movable bristles called setae.
- They have no legs and no hard skeleton.
- The body is covered by moist outer cuticle.
- A thick multi-layered structure, outside the epidermis provides protection.
- They have a central nervous system with a brain.
- Metabolic wastes are removed by Nephridia.
APPEARS IN
संबंधित प्रश्न
Answer the question by choosing correct option.
Which of the following animal's body shows bilateral symmetry?
Label the following.
Re-write the statement by selecting the appropriate option.
Due to which similar characteristic honey bee and cockroach are included in the same phylum?
Find an odd one out.
In which phylum, the animals have setae or parapodia for locomotion?
State whether true or false. If false, correct the statement.
Trachea are the respiratory organ of Annelida.
One of the following is not an Annelid
Triploblastic, metamerically segmented and coelomate animals are found in
Match List - I with List - II.
| List I | List II | ||
| (a) | Metamerism | (i) | Coelenterata |
| (b) | Canal system | (ii) | Ctenophora |
| (c) | Comb plates | (iii) | Annelida |
| (d) | Cnidoblasts | (iv) | Porifera |
Choose the correct answer from the options given below.
Provide appropriate technical term in the space provided.
Lateral appendages in aquatic annelids ______.
