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zoology biology infra-red light radiowaves electrons x-rays heat flame symptoms and specimen collecting laboratory work symptoms specimen collecting complete detail microbiology of domestic and sewage water microbiology domestic and sewage water testes scrotum epididymis man reproduction in man reproduction male reproductive system birth cell wall and endoplasmic reticulum golgi body cell wall systematics insular fauna island biogeography island fauna second messenger and signal transduction pathways second messenger signal transduction pathways signal transduction transduction pathways transduction camp pathway ligand receptor calcium pathway mechanism g- protein kinase spectroscopy spectrophotometers mass spectrophotometer absorption emission nuclear x-rays spectrophotometer nuclear magnetic resonance u.v spectrophotometer nuclear membrane chromosome and prokaryotic vs eukaryotic cell variety of life taxa domain kingdom phyla class order family genus species binomial nomenclature growth and development in plants and animals corelation apical dominance inhibitory effect cleavage zygote adult role of cytoplasm and nucleus in development hammerling experiment acetabularia mediterranea crenulata development 2nd year endoplasmic reticulum female reproductive cycle female reproductive cycle ribosomes golgi apparatus lysosomes peroxisomes glyoxysomes vacuole cytoskeleton human birth afterbirth lactation fruit set fruit ripening reproduction in animals inhibitors general structure of cell cytoplasm enzymes female reproductive system centriole and mitochondria test tube sexually transmitted diseases chloroplast nucleus