Reproductive System of Pheretima (Earthworm)! Male Reproductive Organs of Earthworm: The male reproductive organs consist of testes, testis sacs, seminal vesicles, vasa deferentia, prostate glands and accessory glands. Testes and Testis Sacs: The testes are two pairs, very minute, whitish and lobed structures situated one pair each in segment 10th and 11th found attached with […]
Reproductive System of Pheretima (Earthworm)
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Digestive System of Earth Worm
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Digestive System of Earth Worm! Alimentary Canal of Earth Worm: The alimentary canal runs as a straight tube throughout the length of the body from the mouth to the anus. It consists of the following regions: 1. Mouth and Buccal Chamber: The mouth is a crescentic aperture lying below the prostomium. The mouth leads into […]
Circulatory System of Earthworm
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The blood vascular system of Pheretima is of closed type. It consists of the blood vessels, hearts, loops, capillaries and the blood glands. Blood: The blood of Pheretima is red coloured due to the presence of a respiratory pigment haemoglobin in it. The haemoglobin is not contained in the corpuscles like the vertebrates but it […]
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