हिंदी

Name Major Phyla of Animal Kingdom. Write Down One Character and One Example of Each of Them.

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प्रश्न

Name major phyla of Animal kingdom. Write down one character and one example of each of them.

संक्षेप में उत्तर
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उत्तर

KinKingdom Animalia has been classified into 11 major phylums. These are:
1. Phylum Porifera:  
These are the simplest, multicellular, diploblastic, asymmetrical or radially symmetrical animals. Example: Sycon.

2. Phylum Cnidaria or Coelenterata:
These are diploblastic, radially symmetrical organisms with tissue level of organisation. Example: Hydra.

3. Phylum Ctenophora: 
They are bilaterally symmetrical, triploblastic animals with eight longitudinal rows of ciliary comb-plates for locomotion.
Example: Pleurobrachia.

4. Phylum Platyhelminthes:
They are bilaterally symmetrical, triploblastic, acoelomate and hermaphrodite animals.
Example: Taenia solium.

5. Phylum Nematoda:
They are bilaterally symmetrical, triploblastic, pseudocoelomate and unsegmented animals.
Example: Ascaris.

6. Phylum Annelida:
They are bilaterally symmetrical, triploblastic, true coelomate animals.
Example: Hirudinaria.

7. Phylum Arthropoda:
They are triploblastic, bilaterally symmetrical, haemocoelomate animals with metamerically segmented body.
Example: Palaemon.

8. Phylum Mollusca:
They are bilaterally symmetrical, haemocoelomate animals with little segmentation.
Example: Chiton.

9. Phylum Echinodermata
They are triploblastic, coelomate, radially symmetrical animals with spiny hard calcareous endoskeleton.
Example: Antedon.

10. Phylum Hemichordata
They are bilaterally symmetrical animals with unsegmented body and have gill slits for respiration.
Example: Balanoglossus.

11. Phylum Chordata:
They possess dorsal, hollow, tubular nerve cord with a presence of notochord and paired gill-slits in the pharynx.
Example: Herdmania.

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अध्याय 4: Diversity in Living Organisms - Long Questions Answer (Carrying 5 Marks) [पृष्ठ २६०]

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पी एस वर्मा और वी के अग्रवाल Biology [English] Class 9
अध्याय 4 Diversity in Living Organisms
Long Questions Answer (Carrying 5 Marks) | Q 13 | पृष्ठ २६०

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  Column I   Column II
(a) Operculum (i) Ctenophora
(b) Parapodia (ii) Mollusca
(c) Scales (iii) Porifera
(d) Comb plates (iv) Reptilia
(e) Radula (v) Annelida
(f) Hairs (vi) Cyclostomata
and Chondrichthyes
(g) Choanocytes (vii) Mammalia
(h) Gill slits (viii) Osteichthyes

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