Worms have no teeth. They use their strong, muscular mouths to swallow pieces of leaves and dirt. The mouth is behind the firm and pointed prostomium, which is the front end.
The swallowed food goes through the pharynx and the esophagus and finally into the crop, where food is temporarily stored. From the crop, the food enters into the worm's gizzard, which is named such because of its muscles. Food is ground here before entering into the worm's intestine, which is over two-thirds of its body length. Broken-down food that is beneficial enters into the worm's bloodstream, while the unwanted remnants are removed from its body as worm feces or castings.Learn More
The diet of a worm is based off its location, but worms traditionally eat everything from dead leaves to melon rinds and even cardboard. Studies show that worms are one of the only creatures on the planet that use just about all solid waste as their main diet. This is why many environmentalists believe that worms have the ability to save the planet. They suggest that worms be added to landfills to help eat the waste before it builds up.Full Answer >
Worms move by using their longitudinal muscles, circular muscles and setae. Setae are small hairs that protrude from each segment of the worm's body. Worms can extend these hairs into the surrounding dirt in order to anchor one segment of itself while it pulls the rest of its body forward.Full Answer >
Nearly all animals referred to as worms are invertebrates, including earthworms, and by definition, invertebrates do not have bones. Exceptions include worm lizards, such as the Caecilians and Anguis lizards, which look like worms but have reptilian skeletons.Full Answer >
Worms do not have eyes but have organs that can sense light and touch. These organs help them to detect light intensity and to feel vibrations while moving on the ground.Full Answer >