A(n)__________ is composed of a core of liquid surrounded by a tension-resistant sheath containing muscles.
A)bony skeleton
B)cartilaginous skeleton
C)hydrostatic skeleton
D)endoskeleton
E)exoskeleton

Question

Quizplus · Accepted Answer

A hydrostatic skeleton is made up of a fluid-filled chamber surrounded by muscles arranged in antagonistic pairs. The tension-resistant sheath helps maintain the shape of the animal and contain the pressurized fluid. This type of skeleton is found in animals such as earthworms and jellyfish.

A(n)__________ Is Composed of a Core of Liquid Surrounded by a Tension-Resistant