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.Know More
The worm's longitudinal muscles run the length of its body and allows the animal to contract or stretch itself out. The circular muscles are found in each of the 100 to 150 segments of a worm and are used to lengthen or shorten its individual segments independently from one another. Worms would not be able to move if each segment was unable to be operated independently.
Worms are classified into the Annelida phylum of organisms because of the ringed segments that make up their bodies. A worm propels itself forward and backward by using these muscles and setae in tandem with one another. As worms move through dirt, they construct a network of tunnels that aerates and saturates the soil with water and other nutrients. Worms eat dead and decaying organics that are found throughout the soil as they burrow. They break down these organic nutrients and dispel them in a type of nutrient-rich fertilizer, also known as worm castings.Learn more about Worms
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 do not technically see, as they do not have eyes. Although worms lack eyes, they have sensitive receptor cells around their bodies that act as sensors by helping worms sense light and vibrations. Worms spend much of their time moving underground, and rely on their sensitive receptor cells to navigate through tunnels and avoid excess exposure to sunlight, which may prove fatal.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 >
Segmented worms have multiple segments that make them bilaterally symmetrical. Each segment houses an entire set of organs. Earthworms, ragworms and leeches are some of the 22,000 species of segmented worms. Capable of living in a variety of environments, segmented worms are an extremely viable group of animals.Full Answer >