Semantic Scholar uses AI to extract papers important to this topic.
Few studies have examined the diversity of freshwater planarians in the Iberian Peninsula and Greece. We have searched… Expand SummaryPrevious work relevant to the topic is discussed and the determination of the survival times ofPolycelis nigra in copper… Expand SummaryThere are more lake-dwelling species of triclad in northerm Britain (10) than in southern Sweden (7) and the distribution… Expand Dynamics of abundance and reproductive cycles of limnophileous triclads (Turbellaria) from little ponds.1.Studying 18 little… Expand The suggestion has been put forward that the oligodynamic action of certain heavy metals is the result of the destruction or… Expand 1. The degree of toxicity of the hydrogen ion and the ions of eighteen metals to Polycelis nigra (Muller) has been assessed by… Expand 1. A brief review is given of previous work on the toxic effect of aqueous solutions of metallic salts on living protoplasm and… Expand