Which one of the following features is found in chordates but not in non-chordates?

  • A
    Gills
  • B
    Spiracles
  • C
    Post-anal tail
  • D
    Chitinous exoskeleton

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Similar Questions

"All vertebrates are chordates but all chordates are not vertebrates". Justify the statement.

The diagram of a fish is given below. Identify the parts labelled $A, B, C, D, E, F, G$.

There has been an increase in the number of chambers in the heart during the evolution of vertebrates. Name the classes of vertebrates that have two,three,and four-chambered hearts.

One of the primary characters of chordates is

Assertion: Notochord is a mesodermally derived rod-like structure formed on the dorsal side during embryonic development of chordates.
Reason: Notochord is replaced by the vertebral column in the adult vertebrate.

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