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This analysis aims to describe the results of the calculation of numerical data. A further abiotic factor is moisture, which is important for respiration.One of the simplest analysis and often used as a preliminary analysis of the quantitative research is descriptive statistical analysis. An ideal temperature is 51 degrees Fahrenheit (10.6 degrees Celsius). Temperature is also significant, with implications for growth, respiration, metabolism and reproduction amongst other things. PH is of particular importance a range of 5.5 to 8.7 is acceptable with a preference for neutral soils. Various abiotic factors are significant to Lumbricus rubellus. Further requirements include such abiotic factors as pH and temperature. The worms require loose soil to burrow in and soil moist enough for gas exchange. Rubellus reaches from segments 26 to 32 Habitat Lumbricus rubellus naturally lives in soils high in organic matter, preferably dung and feces. Members of this class are also defined by having permanent. The segmentation of Lumbricus rubellus identifies the organism as a member of Phylum Annelida, while the enlarged segments towards the anterior of the organism called the denotes membership to Class Clitellata. Each segment contains four pairs of setae, or bristles, and the total number of segments per matured organism ranges from 95–105.
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Size and appearance Lumbricus rubellus, or the ' red earthworm', ranges from 25 millimetres (0.98 in) to 105 millimetres (4.1 in) in length and has smooth, reddish, semi-transparent, flexible skin segmented into circular sections.Its range is restricted to the Black Forest area of southwestern Germany. ⁕Lumbricus badensis, the giant earthworm, also belongs to this genus.
The body length varies from 48–108 mm, with about 100–143 segments. It is red-brown, lighter ventrally, iridescent dorsally. ⁕Lumbricus festivus is not found in large numbers. It is the largest species in the genus, about 90–300 mm long, and has around 110–160 segments. Setae are widely paired at both ends of the body. It is strongly pigmented, brown-red dorsally, and yellowish ventrally. ⁕Lumbricus terrestris has several common names, including common earthworm, nightcrawler, and dew worm.
They are usually about 30–70 mm long, and have around 82–100 segments. ⁕Lumbricus castaneus varies from chesnut to violet brown brown or yellow ventrally, and has an orange clitellum. They are usually about 25–105 mm in length, and have around 95-120 segments. Characteristics of some commonly encountered species are: ⁕Lumbricus rubellus is usually reddish brown or reddish violet, iridescent dorsally, and pale yellow ventrally. Lumbricus Lumbricus contains some of the most commonly seen earthworms in Europe.
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PDF to Word API Contact us.įreebase (0.00 / 0 votes) Rate this definition: To convert your PDF into DOCX please upload it: PDF related Tools and maybe help you. Upload your file and let our converter do the work for you! Your file will be converted into DOCX format. Online PDF to DOCX Converter: Convert PDF to DOCX. These and other species of Lumbricus can be distinguished by external features, such as the position of the clitellum, position and form of the tubercula pubertatis and other genital markings, size. Castaneus (Savigny, 1826) overlap in body size, the latter being usually smaller and having a darker, browner pigmentation.