Choose the correct answers from the alternatives given.
Which of the following is not one of the basic characteristics of chordates?

A dorsal supporting rod called a notochord

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A tail

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A dorsal tubular nerve cord

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Pharyngeal pouches that develop into gills and lungs in humans

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Solution

The correct option is D Pharyngeal pouches that develop into gills and lungs in humans
Chordates have pharyngeal (throat) pouches with arches of arteries in them and gill slits to the outside. Many chordates develop gills from at least some of these structures, but land vertebrates, although they have them as embryos, modify them into things such as the roof of the mouth or the voice box. However, the basic characteristics of chordates include a notochord, a dorsal hollow nerve cord, pharyngeal slits, and a post-anal tail.
So, the correct option is, 'Pharyngeal pouches that develop into gills and lungs in humans'.

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Q. The animal exhibiting characteristic of chordates in a simple condition (notochord, gill slits, dorsal tubular nerve chord) and similar to some ancient ancestor of vertebrates is the

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Q. How many of the following statements are true w.r.t. fundamental features of chordates?
(a) Pharynx is perforated by gill slits.
(b) Heart is dorsal (if present).
(c) Post-anal tail is absent.
(d) Notochord is absent.
(e) Central nervous system is dorsal, hollow and single.

Choose the correct option.

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_____.

Based on the location of the dorsal nerve cord, chordates are subdivided into ___________________ & ____________________ .

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Choose the correct answers from the alternatives given.Which of the following is not one of the basic characteristics of chordates?

Choose the correct answers from the alternatives given.
Which of the following is not one of the basic characteristics of chordates?