Question

Choose the correct answers from the alternatives given.
Gill slits function in:

• A. respiration
• B. circulation
• C. food trapping
• D. both (a) and (c)

Answer 1

The correct option is D both (a) and (c)

In fishes and some amphibians, the slits bear gills and are used for gas exchange. In most land- living chordates In most land- living chordates, the gill slits are present only in embryonic stages as pharyngeal slits. The pharynx is perforated by over 100 pharyngeal slits or gill slits, which are used to strain food particles out of the water.

So, the correct option is, 'both (a) and (c)'.