Trochophores,the free-swimming larvae of many mollusks,are propelled through the water by
A)flagella.
B)cilia.
C)flame cells.
D)nephridia.
E)the radula.

Question

Quizplus · Accepted Answer

Trochophores are propelled through the water by cilia, which are hair-like structures that beat rhythmically to create movement. Flagella are also hair-like structures used for movement, but they are not typically found in trochophores. Flame cells and nephridia are organs used for filtering waste and regulating water balance in certain invertebrates. The radula is a unique feeding structure found in some mollusks, but it is not involved in propulsion or movement.

Trochophores,the Free-Swimming Larvae of Many Mollusks,are Propelled Through the Water