نتایج جستجو برای: biology
تعداد نتایج: 163115 فیلتر نتایج به سال:
He received his B.Sc. degree in Biology (1990) from Department of Biology, University of British Columbia, Canada, also M.Sc. in Botany (1993) from Department of Botany, University of British Columbia, Canada and Ph.D. in Plant Ecology (1996) from Department of Animal & Plant Sciences, University of Sheffield, England.Dr. Fraser's expertise is in grassland and wetland ecosystems, with a focus o...
The aim of this study was to Comparative position of laboratory works in biology textbooks in Iran and United Kingdom. Therefore were selected as sample the biology text book in tenth-grade of both countries, and were analyzed based on the assessment criteria of laboratory works, then was determined the absolute frequency, relative frequency and Percent of relative frequency of each...
Background: As an emerging interdisciplinary area of science with a multitude of potential facilities and applications, synthetic biology integrates different disciplines with one another ranging from basic science to engineering. This interdisciplinary branch therefore encompasses sciences that require specific development and ethical approaches. Materials and Methods: Science management princ...
the systematics, morphology, distribution, biology, economic importance and conservation of the spiny eel ( mastacembelus mastacembelus ) of iran are described, the species is illustrated, and a bibliography on this fish is provided. the single species is distributed in southern iranian basins, including karkheh, karun, jarrahi and helleh river basins, mostly part of the tigris river and persia...
the silversides or sand smelts are found in coastal areas of temperate to tropical seas and in fresh water. there are about 14 genera and 68 species with only one native species in the caspian sea basin, atherina caspia . in this review, the systematics, morphology, distribution, biology, economic importance and conservation of the caspian silverside of iran are described, the species is illust...
the systematics, morphology, distribution, biology, economic importance and conservation of the perches of iran are described, the species are illustrated, and a bibliography on these fishes in iran is provided. there are three species, perca fluviatilis , sander lucioperca and s. marinus , found naturally in the caspian sea basin, with s. lucioperca translocated.
the systematics, morphology, distribution, biology, economic importance and conservation of the sticklebacks and pipefishes of iran are described, the species are illustrated, and a bibliography on these fishes is provided. there are two sticklebacks ( gasterosteus aculeatus , an exotic, and pungitius platygaster , a native) and one native pipefish ( syngnathus caspius ), the natives found in t...
the systematics, morphology, distribution, biology, economic importance and conservation of the milkfish ( chanos chanos ) of iran are described, the species is illustrated, and a bibliography on this fish in iran is provided. it is characterised by a compressed and oblong body, small, toothless and terminal mouth, non-protractile upper jaw, lateral pouches on the posterior part of the branchia...
anopheles dthali patton which is one of the 7 malaria vectors in iran was not taken in to consideration until november 1965 when definite sporozaites were found for the first time in its salivary glands in bandar abbas, south of iran. afterwards, efforts have been made to get complete ecological and epidemiological information on this species. the areas of study were two districts of mamasani, ...
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