A squid swims by filling folds in its body walls with this then ejecting it through a siphon

Below you can find the A squid swims by filling folds in its body walls with this then ejecting it through a siphon Jeopardy Words Answer. The answer to A squid swims by filling folds in its body walls with this then ejecting it through a siphon has 5 letters. This clue belongs to the Marine biology category and is part of Jeopardy Word Level 128. If you scroll near the bottom you will find other clues and answers part of level 128