WebThe life span of earthworm is 3-10 years. An adult worm measures about 15-30 cm in length and is dark brown in colour due to the presence of a pigment porphyrin in its skin. The body is made of 100 to 120 segments, of which the first segment is divided into an anterior prostomium and posterior ring-like peristomium. Web>> Anatomy of Earthworm >> Distinguish between the following (a) Pr Question Distinguish between the following (a) Prostomium and peristomium (b) Septal nephridium and pharyngeal nephridium Hard Solution Verified by Toppr Solve any question of Structural Organisation In Animals with:- Patterns of problems > Was this answer helpful? 0 0
In Earthworm, mouth is situated on - Toppr
WebThe body of the earthworm is covered externally by a thin noncellular cuticle. This is followed by an epidermal layer, two muscle layers, and inner coelomic epithelium. The … Web28. nov 2024 · On the peristomium is a bump or lobe called the prostomium; the shape of this feature is useful for species identification. The prostomium can be used as a flap to cover the mouth, but also has sensory functions, and can be … 2020년 반려동물 보호·복지 실태조사 결과
Earthworm- Habit, Habitat, Morphology, Bodywall, Locomotion
WebThe first segment of earthworm is known as the peristomium. It contains mouth and prostomium. Prostomium is a fleshy lobe overhanging the mouth which is sensory in function. Earthworms also possess specialised chemoreceptors on the anterior region which react to chemical stimuli. Fig: Peristomium. 2. How do earthworms respire? Web24. apr 2024 · An earthworm's septums aid movement because they provide division internally between the earthworm's body segments and allow fluid to build without passing into another segment. The continual muscle … WebEarthworm is a hermaphrodite with a long, cylindrical and segmented body. The digestive system of earthworm comprises an alimentary canal that runs along the length of the body from mouth to anus and glands. ... Mouth: … 한글 2020 무료 설치 팁