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Pharyngeal gill slits are dorsal in...

Pharyngeal gill slits are dorsal in

A

Cephalochordates

B

Urochordates

C

Hemichordates

D

Euchordates

Text Solution

Verified by Experts

The correct Answer is:
C
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Pharyngeal gill slits are absent in Hemichordates.

Name the phylum in which pharyngeal gill slits are present but notochord is absent.

Knowledge Check

  • Consider the following structures. (A) Notochord(B) Pharyngeal gill slits (C) Dorsal hollow nerve cord (D) Tail. How many structure are present in adult cephalochordate?

    A
    Only (A)
    B
    Only (A) & (B)
    C
    (A), (B) & (C) only
    D
    (A), (B), (C) & (D)

  • Pharyngeal gill-slits are found in

    A
    Cray fish
    B
    Cuttle fish
    C
    Flying fish
    D
    Silver fish

  • Pharyngeal gill-slits are found in

    A
    Cray fish
    B
    Dog fish
    C
    Cuttle fish
    D
    Silver fish

    • Similar Questions

    Explore conceptually related problems

    In higher chordates, pharyngeal gill slits are

    In higher chordates, pharyngeal gill slits are

    Statement (S) Lancelets are jawless primitive fish like vertebrates Statement (R) In lancelets notochord tubular nerve cord and pharyngeal gill slits are present the throughout their life

    Vertebrates are characterized by (i) presence of true coelom (ii) presence of notochord (iii) a ventrally placed heart (iv) the pharyngeal gill slits at some stage in life cycle (v) RBCs.

    The statements given below highlight some of the chordates features. They have a hollow nervous system which is present ventrally above the notochord. II. They prossess four pharyngeal gill slits present in the from of perfortions on the lateral sides of pharynx. III. Epidermis is made up of stratified epithelium. IV. They have two pairs of appendages, one pair at the begnning of the trunk and other in the middle of the trunk. V. They have a closed vascular system.

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