Habit and Habitat: Earthworm is a reddish brown terrestrial invertebrate. The blood is bright red in colour due to the presence of haemoglobin or erythrocruorin which is dissolved in plasma. Earthworms are monoecious or hermaphrodites. Sexes are separate and cockroach shows sexual dimorphism. This document is highly rated by Class 11 students and has been viewed 17 times. Reproductive system. EARTHWORM. Order - Oligochaeta. Male Reproductive System: There are two pairs of testes present in the 10th and 11th segments. Pheretima and Lumbricus are the common Indian earthworms.. Morphology of Earthworm. Earthworm . They are protandrous, there is no self-fertilization. Male Reproductive System. Earthworms leave the burrow only during the rainy season when their burrows are flooded with water. The periductal funnel is enclosed by testes sac.1 st pair lies in 10 th segment and 2 nd pair lies in 11 th … Hepatic Caecae : At the junction of gizzar Hence they are called hermaphrodite or bisexual. Earthworm - Reproductive System . Class - Chaetopoda. Reproductive … There are a "Earthworm" is the common name for the largest members of Oligochaeta (which is a class or subclass depending on the author). Earthworm has a long cylindrical body which is divided into more than a hundred short segments or metameres. Blood-vascular system of earthworm is well developed and consists of closed blood vessels, which are longitudinal and transverse and in which red blood flows continuously. Earthworms are nocturnal animals. Brain gives off a pair of short, stout cords, the circumoesophageal connectives, that encircle the oesophagus and pass downwards and backwards over the sub-oesophageal ganglion situated below oesophagus. Reproductive Organs of Male Cockroach (i) Testes : These are elongated massive structures, extending … They lie in the burrows during the day and come out at night for food. Type - Lampito mauritii . Each gland consists of a glandular part and reservoir. They have two pairs of testes in the 10 th and 11 th segments. EduRev, the Education Revolution! The vasa deferentia run up to the 18th segment; where they join the prostatic duct. Male reproductive organs are testes, vas deferens, ejaculatory duct, mushroom gland, phallic gland and gonapophyses. Salivary glands : One pair of bilobed, whitish and translucent salivary glands are present around oesophagus and crop. In classical systems, they were in the order Opisthopora, since the male pores opened posterior to the female pores, although the internal male segments are anterior to the female. Reproductive System: Earthworm is hermaphrodite. Mar 13, 2020 - Reproductive System of Earthworm Class 11 Notes | EduRev is made by best teachers of Class 11. Anatomy of Earthworm,Cockroach & Frog of Class 11. Best Videos, Notes & Tests for your Most Important Exams. Central Nervous System : Consists of brain or supra-oesophageal ganglion. Fig. Reproductive System. Earthworms have both the male and female reproductive organs in the same body. Created by the Best Teachers and used by over 51,00,000 students. Phylum - Annelida. Reproductive System. It lives in the upper layer of moist soil. Fig. Two pairs of accessory glands are present in the 17th and 19th segments. Salivary glands secrete saliva containing mucin, amylase, cellulose and chitinase. In between the 12 th and 13 th segments, there is a pair of ovaries. Anatomy of Earthworm,Cockroach & Frog of Class 11.

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