Figure 40-2
Use the figure to answer the corresponding question(s).
-Which of the following statements about hydrostatic skeletons is true?
A) Compression of fluids causes movement of an animal body.
B) Hydrostatic skeletons permit very precise and delicate movements.
C) Fluid is moved throughout an organism due to alternating contractions of antagonistic muscles.
D) Contraction of the inner circular muscles causes the body of an organism to shorten.
E) Contraction of the outer longitudinal muscles causes the body of an organism to lengthen.

Question

Figure 40-2
Use the figure to answer the corresponding question(s). 
-Which of the following statements about hydrostatic skeletons is true?
A) Compression of fluids causes movement of an animal body. 
B) Hydrostatic skeletons permit very precise and delicate movements. 
C) Fluid is moved throughout an organism due to alternating contractions of antagonistic muscles. 
D) Contraction of the inner circular muscles causes the body of an organism to shorten. 
E) Contraction of the outer longitudinal muscles causes the body of an organism to lengthen.

Quizplus · Accepted Answer

Hydrostatic skeletons rely on the movement of fluid within a closed cavity, facilitated by the alternating contractions of antagonistic muscles, to enable movement.

Figure 40-2 Use the Figure to Answer the Corresponding Question(s)