Energy sources Animation Play

Energy sources and cell respiration Student activity Play

Enzymes Student activity Play

Enzymes are proteins Student activity Play

Enzymes in washing powders Animation Play

Enzymes – biological catalysts Class activity Play

Enzymes – biological catalysts Whiteboard presentation Play

Eubacteria – true bacteria Student activity Play

Eutrophication of water Student activity Play

Eutrophication of waters Whiteboard exercise Play

Even smaller than viruses Student activity Play

Exchange of substances with the external environment Animation Play

Excretion of drugs Animation Play

Experiment on energy substances of the organism and cell respiration Simulation Play

Facilitated diffusion and membrane transport proteins Whiteboard exercise Play

Features of proteins Chart Play

Features of the connective tissue Whiteboard exercise Play

Fertility of soils and water bodies Slideshow Play

Flow of energy through a food chain Slideshow Play

Food chain Student activity Play

Food processing in the alimentary canal Class activity Play

Food processing in the alimentary canal Whiteboard presentation Play

Food pyramid Animation Play

Food – nutrients; stimulants and foreign substances Student activity Play

Foreign molecules – antigens Student activity Play