Name the respiratory structure named by fish

Fish and other aquatic organisms use gills to take up oxygen dissolved in the water and diffuse carbon dioxide out of the bloodstream. Some insects utilize a tracheal system that transports oxygen from the external environment through openings calledspiracles.

Explanation:

please mark as brainlist answers

Fish gills

Explanation:

Fish gills are organs that allow fish to breathe underwater.

yes its like the dead sea which is full of salt which makes you stay afloat

so yes an egg will float in salt

option c is the correct answer.