Chordata || Protochordata

Phylum-Chordata -> Urochordata -> Cephalochordata -> Vertebrata || 1st ostacodermi || 2nd cycloshomata

Animal kingdom || arthropoda || mollusca || echinodewrmata || hemichordata || chordata

Discussion Class-3 Phylum Mollusca || Echinodermata || Hemichordata || Chordata || Cephalochordata || Pisces || Superclass

Phylum Chordata-General Characters 2 || Sub phylum Urochordata & Cephalochordata

What is the basis of classification of Protochordata?

Chordata || Vertebrate

Choos the animals that belong to subphylum-Urochordata of class-Protochordata from the options.

Nematoda || Arthropoda || Annelida || Mollusca || Echinodermata || Chordata

Which of the following statements are true for the phylum-Chordata? (a) In urochordata notochord extends from head to tail and it is present throughout their life. (b) In vertebrata notochord is present during the embryonic period only. (c) Central nervous system is dorsal and hollow. (d) Chordata is divided into 3 subphyla: Hemichordata,Tunicata and Cephalochordata.