Question

Flow of blood in the ventral vessel of earthworm is _____________.

• A. Forward
• B. Backward
• C. Backward in half of it and forward in another half
• D. All of these

Answer 1

The correct option is B Backward

The earthworm has a closed circulatory system. An earthworm circulates blood exclusively through vessels. There are three main vessels that supply the blood to organs within the earthworm. These vessels are the aortic arches, dorsal blood vessels, and ventral blood vessels. The aortic arches function like a human heart. There are five pairs of aortic arches, which have the responsibility of pumping blood into the dorsal and ventral blood vessels. The dorsal blood vessels are responsible for carrying blood to the front of the earthworm’s body. The ventral blood vessels are responsible for carrying blood to the back of the earthworm’s body.

So, the correct option is 'Backwards'.