Question

what is the meaning of pharyngeal gill slits and where are they situated?

Answer 1

hello!

• pharyngeal gill slits are lateral perforations found in pharynx of chordates
• it is one of the hallmark i.e., defining feature of chordates.
• it is ecto-endo dermal in origin.
• .it helps in respiration protochordates and serves for filter feeding in higher chordates

Answer 2

Pharyngeal slits are a third chordate feature; these are openings between the pharynx, or throat, and the outside. ... In primitive chordates, these slits are used to filter food particles from the water. In fishes and some amphibians, the slits bear gills and are used for gas exchange.

These are mostly found in chordates

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