A skeleton that consists of fluid held under pressure in a closed body compartment is known as a(n)
A) endoskeleton.
B) exoskeleton.
C) hydrostatic skeleton.
D) cuticle.

Question

Quizplus · Accepted Answer

A hydrostatic skeleton is a skeletal system that consists of a fluid held under pressure in a closed body compartment. This type of skeleton is found in animals such as earthworms and jellyfish. Option A (endoskeleton) refers to a skeleton that is inside the body of an organism, such as the bones in humans. Option B (exoskeleton) refers to a hard outer protective covering found in some animals like insects and crustaceans. Option D (cuticle) refers to a protective layer on the outer surface of plants and some animals.

A Skeleton That Consists of Fluid Held Under Pressure in a Closed