Chordates possess several distinguishing characteristics that separate them from other animal groups. Check all of the features that one would use to classify members into this phylum.

a. postanal tail
b. pharyngeal slits
c. notochord
d. dorsal hollow nerve cord

All the features i. e. postanal tail, pharyngeal slits, notochord and dorsal hollow nerve cord are present in chordates.

Explanation:

Postanal tail is characteristics of chordates in which tail arises from the posterior part of animal which helps in the movement of organisms such as fishes. Pharyngeal slits is a part present next to mouth which removes the water that is enter through mouth. This character is present in the fish. Notochord is a flexible bone which gives support to the body of chordates. Dorsal hollow nerve cord is a hollow tube consist of brain and spinal cord which control all body functions.

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