'Ephemeroptera' diaporamas de présentation

Classification of Living Hexapod Orders

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EPHEMEROPTERA

EPHEMEROPTERA. Two theories of flight. Entognatha. Archaeognatha. Hexapoda. Zygentoma = Thysanura. Ephemeroptera. Insecta. Odonata. Plecoptera. Embiodea. Pterygota. Zoraptera. Dermaptera. Grylloblattodea. ?. Mantophasmatodea. Orthoptera. Phasmatodea. Blattaria. Isoptera.

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ANALYSIS of WATER POLLUTION according to BIOINDICATORS

ANALYSIS of WATER POLLUTION according to BIOINDICATORS. Water pollution. Bioindicators are organisms, which indicate pollution of the ecosystem. Water pollution. There are 5 classes of pollution: class 1: clean water class 2: partly polluted water class 3: moderately polluted water

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