A fluid-filled body cavity can function as a hydrostatic skeleton because

Question

Quizplus · Accepted Answer

A fluid-filled body cavity can function as a hydrostatic skeleton because fluids are incompressible at physiological pressures. This means that the fluid will maintain its shape and provide support to the organism, allowing it to move and maintain its posture. Highly compressible fluids (Option B) would not be suitable for this function. The density of the fluid compared to body tissues (Option D) is not as important as its incompressibility. Ciliary action (Option E) is not directly related to the function of a hydrostatic skeleton.

A Fluid-Filled Body Cavity Can Function as a Hydrostatic Skeleton