Write very briefly about kingdom Chordata .
Kimmus:
briefly means? do u need all the characters of kingdom Chordata?
Plzz reply, then i can help u by all means (:
I need every characteristics of chordata.
Well, thanks :)
but chordata ain't any kingdom
it's a phylum, right?
Yeah, my mistake, its about phylum chordata.
:)
Answers
Answered by
4
Phylum Chordata :-
⇒ They are categorised by the presence of Notochord , dorsal hollow nerve cord & paired pharyngal gill slits.
⇒ Oragan-system level of organisation.
⇒ Bilaterally symmetrical.
⇒ Triploblastic.
⇒ Coelomate.
⇒ They hv post anal tail.
⇒ Closed circulatory system.
⇒ Phylum chordata is divided into 3 subphyla : 1. urochordata, 2. cephalochordata & 3. vertebrata.
⇒ Subphyla urochordata n cephalochordata together called protochordata they r exclusively marine.
Examples of Urochordata → Ascidia & Salpa
Examples of Cephalochordata → Branchiostoma.
Examples of vertebrates → Placodermi & Sharks.
⇒ They are categorised by the presence of Notochord , dorsal hollow nerve cord & paired pharyngal gill slits.
⇒ Oragan-system level of organisation.
⇒ Bilaterally symmetrical.
⇒ Triploblastic.
⇒ Coelomate.
⇒ They hv post anal tail.
⇒ Closed circulatory system.
⇒ Phylum chordata is divided into 3 subphyla : 1. urochordata, 2. cephalochordata & 3. vertebrata.
⇒ Subphyla urochordata n cephalochordata together called protochordata they r exclusively marine.
Examples of Urochordata → Ascidia & Salpa
Examples of Cephalochordata → Branchiostoma.
Examples of vertebrates → Placodermi & Sharks.
nice ans
Thanx..
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Answered by
5
PHYLUM CHORDATA
--------------------------------------------
--------------------------------------------------------
⇒ This phylum contains about 48000 species.
Main characteristics of phylum CHORDATA
----------------------------------------------------------
1.Presence of NOTOCHORD
2.Dorsal hollow NERVE CORD
3.Pharyngeal Gill Slits
4.Post Anal Tail
5. Symmetry ⇒ BILATERAL SYMMETRY
6. Portal system is present
7. Ventral Heart
8.Respiratory pigment is HAEMOGLOBIN
9.Paired appendages are present.
10.Living endoskeleton is present
11. Digestive tract is complete.
CLASSIFICATION
------------------------
Phylum chordata hav 3 subphyla
1. UROCHORDATA ( TUNICATA )
2. CEPHALOCHORDATA (ACRANIA)
3. VERTEBRATA
--------------------------------------------
--------------------------------------------------------
⇒ This phylum contains about 48000 species.
Main characteristics of phylum CHORDATA
----------------------------------------------------------
1.Presence of NOTOCHORD
2.Dorsal hollow NERVE CORD
3.Pharyngeal Gill Slits
4.Post Anal Tail
5. Symmetry ⇒ BILATERAL SYMMETRY
6. Portal system is present
7. Ventral Heart
8.Respiratory pigment is HAEMOGLOBIN
9.Paired appendages are present.
10.Living endoskeleton is present
11. Digestive tract is complete.
CLASSIFICATION
------------------------
Phylum chordata hav 3 subphyla
1. UROCHORDATA ( TUNICATA )
2. CEPHALOCHORDATA (ACRANIA)
3. VERTEBRATA
Hope it helps ^_^
nice ans
Thank you #Prajwal :)
welcome
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