The primary propulsive mechanism of a fish is
A) its trunk and caudal musculature.
B) movement of water into the mouth and forced out the gills.
C) movement of the pectoral fins.
D) movement of the pelvic fins.
E) None of the choices are correct

Question

Quizplus · Accepted Answer

The trunk and caudal musculature of a fish are responsible for generating the primary propulsive force that drives the fish through water. This movement, known as undulation, creates a wavelike motion that propels the fish forward.

The Primary Propulsive Mechanism of a Fish Is