Animals with a double ventral notochord, dorsal nerve cord, pharyngeal gill slits and a post anal tail are placed in the highly evolved phylum called_____.

Invertebrata

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Vertebrata

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Hemichordata

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Chordata

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Solution

The correct option is D
Chordata

Double ventral notochord, dorsal nerve cord, pharyngeal gill slits and a post anal tail are characteristic features of Phylum Chordata.

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Animals with a double ventral notochord, dorsal nerve cord, pharyngeal gill slits and a post anal tail are placed in the highly evolved phylum called_____.

Q. Phylum Chordata is characterised by the presence of
A. notochord
B. dorsal hollow nerve cord
C. paired pharyngeal gill slits

Q. Animals of this phylum have a characteristic feature of presence of notochord, a dorsal hollow nerve cord and paired pharyngeal gill slits. Within this phylum is an advanced group called as vertebrates which include fish, amphibians, reptiles, birds and mammals.

Q. Read the following statements.

(a) Three subphyla of phylum Chordata are Tunicata, Cephalochordata and Vertebrata.
(b) In Ascidia, notochord is present only in larval tail.
(c) Notochord persists throughout life in all vertebrates.
(d) Nerve cord is ventral, solid and double in chordates.

Choose the option with only incorrect statements.

Name the phylum in which dorsal nerve tube, notochord and pharyngeal gill clefts are present.

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Animals with a double ventral notochord, dorsal nerve cord, pharyngeal gill slits and a post anal tail are placed in the highly evolved phylum called_____.

The correct option is D Chordata Double ventral notochord, dorsal nerve cord, pharyngeal gill slits and a post anal tail are characteristic features of Phylum Chordata.

The correct option is D
Chordata

Double ventral notochord, dorsal nerve cord, pharyngeal gill slits and a post anal tail are characteristic features of Phylum Chordata.