WebEarthworm, Chapter Notes, Class 11, Biology. Download as PDF. Mouth. (i) It is a aperture located in the peristomium. (ii) The mouth is dorsally connected over by a small fleshy … WebNov 12, 2011 · Counting from the front, the worm's male sex cells lie in segments 10 and 11. From here the sperm pass through sperm ducts to two male genital openings on the bottom of segment 15. On segments 9 and 10 there are two minuscule sacs called sperm receptacles, or pores, where, during earthworm sex, sperm are deposited.
Draw a labelled Diagram of the reproductive organs …
WebAn earthworm is a terrestrial invertebrate that lives on the earth surface. They help in keeping the soil porous and suitable for agriculture and rely on the dead organic matter found in the soil. They can breathe through their skin. Earthworm’s Inhalation Process Earthworms perform the process of respiration with the help of thin permeable skin. WebMar 17, 2024 · earthworm, also called angleworm, any one of more than 1,800 species of terrestrial worms of the class Oligochaeta (phylum Annelida)—in particular, members of the genus Lumbricus. Seventeen … hospital direct dressing kit
Earthworm: Digestive System, Structure of Alimentary …
WebJan 14, 2024 · The circulatory or blood vascular system of an earthworm is a closed type. It consists of the blood vessel, heart, capillaries, and blood glands. Blood is composed of fluid plasma and colorless corpuscles. Blood is red in color due to the presence of respiratory pigment hemoglobin (erythrocruorin) in it. Hemoglobin is not contained in the ... WebDec 26, 2024 · An earthworm is an invertebrate belonging to the phylum Annelida. They are found in the soil and make it fertile. They feed on … WebJan 22, 2024 · Known as a ciliated funnel or nephridiostome. Proximal funnel-shaped structure of the nephridium lying in the coelom. It consists of an elliptical pore bounded by the so-called upper and lower lips. The upper lip is formed of a large central cell and 8 or 9 marginal cells. The lower lip is formed of 4 to 5 compact cells. psychic email free