What properties of liquids make them good for use in the hydro-static skeleton?

Liquids are effective for use in a hydrostatic skeleton due to their incompressibility and ability to transmit pressure uniformly in all directions. This allows the organism to maintain its shape and support movement through muscle contractions without the need for rigid structures. Additionally, the adaptability of liquids to conform to the surrounding environment provides flexibility, enabling various forms of locomotion and posture. Together, these properties facilitate efficient movement and structural support in soft-bodied organisms.