Which is incorrect about the fish heart?
A)Blood returns to the heart through veins.
B)The heartbeat sequence in the fish is maintained in vertebrates that evolved later.
C)It is a 3-chambered heart shaped like a tube.
D)The electrical impulse that produces the contraction is initiated in the sinus venosus.
E)It pumps fully oxygenated blood to the body that has passed over the gills.

Question

Quizplus · Accepted Answer

Fish have a 2-chambered heart, not a 3-chambered heart. The heart typically consists of an atrium and a ventricle, not three chambers.

Which Is Incorrect About the Fish Heart