_______have open circulatory systems, a complete digestive tract, and a reduction of the coelom.

Question

Quizplus · Accepted Answer

Mollusks are the only option given that have an open circulatory system, a complete digestive tract, and a reduction of the coelom. Rotifers have a pseudocoelom and incomplete digestive tract, annelids have a closed circulatory system and a coelom, nematodes have a pseudocoelom and incomplete digestive tract, and flatworms have a branched gastrovascular cavity and no true circulatory system or coelom.

_______Have Open Circulatory Systems, a Complete Digestive Tract, and a Reduction