Earthworms are part of phylum annelida, class oligochaeta - earthworm organ systems introduction they are classified in this phylum because their bodies are segmented and separated by an internal wall called septa each segment may or may not be different from the other depending on its function earthworms also classify with this phylum because it. An earthworm is a tube-shaped, segmented worm found in the phylum annelida they are commonly found living in soil, feeding on live and dead organic matter an earthworm's digestive system runs through the length of its body it conducts respiration through its skin.
The earthworm has a dual circulatory system, meaning that its coelom and circulatory system carry food, respiratory gasses, and waste its closed circulatory system has five main blood vessels: the dorsal vessel, then ventral vessel, and the subneural vessel, and the 2 lateronueral vessels. Circulatory system – the circulatory system of earthworms is composed of two primary blood vessels that extend through the entire length of the body blood moves through the ventral blood vessel to the posterior of the body and through the dorsal vessel to the anterior of the body. A earthworm has a nervous system with a simple brain and nerve cord circulation: a earthworm has blood and blood vessels with multiple (5) hearts click here for earthworm heartbeat movie: earthworm heartbeat movie: respiration: a earthworm has no respiratory organ.
The earthworm is an example of a foraging herbivorous annelid, obtaining food by eating its way through the soil and extracting nutrients from the soil as it passes through the digestive tract hint: starting at the anterior end, locate the muscular pharynx (food ingestion. Start studying systems and organs of an earthworm learn vocabulary, terms, and more with flashcards, games, and other study tools. Most earthworms are hermaphrodites, which means they carry both male and female reproductive organs to mate, the earthworms basically exchange sperm then, each earthworm lays eggs fertilized by the other's sperm external anatomy (use your dissection terms page) 2 the top (side we see) of the earthworm is the _____ side.
Question: do earthworms really eat dirt answer: yes, earthworms eat dirt, but most of the dirt moves through their body and is deposited as waste the waste of earthworms is called casts there is much more to the earthworm’s digestive system than just eating and pooping dirt. Explain why the crop and gizzard are important parts in the digestive system of the earthworm – as an earthworm worms its way through dirt, soil enters its body through the mouth this dirt is pulled to the gizzard by the crop.