What Are The Three Characteristics Of Earthworms?

What Are The Three Characteristics Of Earthworms? Characteristics. All worms are bilaterally symmetrical, meaning that the two sides of their bodies are identical. They lack scales and true limbs, though they may have appendages such as fins and bristles. Many worms have sense organs to detect chemical changes in their environments, and some have light-sensing

What System Is The Aortic Arches In An Earthworm?

What System Is The Aortic Arches In An Earthworm? 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. What type of circulatory system

Can Humans Get Roundworms From Dogs?

Can Humans Get Roundworms From Dogs? Roundworms do pose a significant risk to humans. Contact with contaminated soil or dog feces can result in human ingestion and infection. Roundworm eggs may accumulate in significant numbers in the soil where pets deposit feces. Once infected, the worms can cause eye, lung, heart and neurologic signs in