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 is correct

Question

Quizplus · Accepted Answer

The primary propulsive mechanism of a fish is the movement of its trunk and caudal musculature to produce thrust and propel the fish forward through the water. This is commonly known as swimming. While movement of the fins can aid in maneuvering and stabilizing, it is not the primary propulsive mechanism. Water movement through the mouth and gills is part of the respiratory system and does not contribute to forward propulsion.

The Primary Propulsive Mechanism of a Fish Is