speciesistn.物种歧视者（认为人比动物重要）speciesn.种类；（单复同）物种species of dryland soil旱地土壤种类species diversity index种分歧指数species indentification种类鉴定speciesspecific antigen种特异性抗原, 种族特异性抗原Species differentiation物种分化species of Rhododendron杜鹃属植物species-area relation种-面积曲线species characteristics特性Species character istics种质特性species homologous genes种属同源基因