PPT-EARTHWORMS

Vocabulary Coelomic body cavity Body cavity any fluidfilled space in a multicellular organism other than those of vessels Lateroneural Nerves that run the length of the body Subneural. brPage 1br brPage 2br brPage 3br brPage 4br brPage 5br of first brPage 6br brPage 7br brPage 8br brPage 9br brPage 10 Worms species come in three general categories. Litter . dwelling (. Epigeic. ). Soil dwelling (Endogenic). D. eep burrowing (. Anecic. ). Identifying Adult Worms. Adult worms have a thickened segment in their mid section that houses their . By . Mrs Gillespie. Earthworms burrow through the soil making tunnels. They do this by eating the soil. . Worms help to keep soil healthy. We need healthy soil for growing plants, fruit and vegetables.. and. Conservation Tillage. Steve Groff. Holtwood, PA. www.cedarmeadowfarm.com. Cover Crops. Crop rotation. Permanent mulch cover. . Enhancing the Environment. Permanent. . Cover Cropping System. HOSTthrivewetareasarepeststrees,freshvegetables,plantstems,trunks,leaves,flowers,rootsornamentalslandscapeplants,earthworms, CYCLEBEHAVIOR:EggReproducing Worms have rounded or flattened bodies, usually without arms or legs.. Some worms live in the water, and some live on land.. This . Spirobranchus. . giganteus. (Red and white Christmas tree worm) lives in the ocean.. Mrs. . aRusso. Grade 7- Life Science. General Characteristics of Worms. Slender, legless invertebrates. Have . organs. (digestive, reproductive, etc.). Show bilateral . symmetry . (matching halves). 5-minute workshop. From . Hobbie. et al. 2006:. . . Whether . earthworms in this site are responding directly to higher litter . Ca. or to the concomitant higher concentrations of soil . Ca. (Reich et al. 2005) is unknown (. By : Jennifer Levinsky. ECD 133. July 30, 2014. Science Concepts. Life Science: The Underground Environment. The worm’s underground habitat is a changing environment and a living world.. Worms need soil to live.. We will record the different kinds and number of earthworms.. We will learn how important earthworms are for healthy soils.. A . Citizen Science . project to record earthworms and soils.. What is an earthworm?. Bacteria (10,000,000,000,000). Protozoa (10,000,000,000). Fungi (100,000,000,000). Nematodes (5,000,000). Mites (100,000). Springtails (50,000). Rotifers (10,000). Insects and Spiders (5,000). Potworms. tooths. eyes bones or . nostrils, it’s a wonder they get around.. *What type of error is created by placing a comma after nostrils? Write the answer on your paper.. Corrections. Earthworms have no . Phylum- . Annelida. Class- . Oligochaeta. Order- . Opisthopora. Genus- . Eisenia. . Species- . f. oetida. Species of earthworms: . There are about 3000 species of earthworms in the world but only 3-4 species are used in vermicomposting. In India, only two species are being extensively used for vermicomposting namely,. The common earthworm (. Lumbricus. . terrestris. ) is a terrestrial annelid of the class . Oligochaeta. (Baker & Garland, 1982). Earthworms have no specialized respiratory structures and gas exchange occurs by simple diffusion through a liquid film on the surface of the body, which must be kept moist (Curtis & Barnes, 1989). The earthworm has a closed circulatory system, of which the dorsal blood vessel is the principal pumping organ (Hickman et al., 2008). The blood is transported in this vessel by peristaltic waves of contraction and carries food, wastes and respiratory gases (Hickman et al., 2008). A closed circulatory system has an advantage over open systems as it can support a faster metabolic rate (.