Adaptations of insects that are essential for life on land Illustration Play

Amino acids Slideshow Play

Amino acids – the basic units of proteins Student activity Play

Chemical elements essential for plants Slideshow Play

Chemical pollution – nutrients Student activity Play

Chemical pollution – nutrients Whiteboard exercise Play

Chemotropism of pollen tube Animation Play

Connective tissues – general organisation Student activity Play

Digestion Class activity Play

Digestion in the alimentary canal Illustration Play

Digestion of carbohydrates; proteins and lipids Student activity Play

Digestion of food rich in cellulose Class activity Play

Digestion of food rich in cellulose Whiteboard presentation Play

Effects of an excess of nutrients in the environment Slideshow Play

Energy as an essential factor in muscle contraction Student activity Play

Enzymes are essential to life Slideshow Play

Essential and non essential elements Slideshow Play

Essential and non-essential amino acids Student activity Play

Essential and non-essential amino acids Whiteboard exercise Play

Essential elements Whiteboard exercise Play

Essential elements – macro-elements; trace elements and ultra-trace elements Student activity Play

Essential fatty acids Animation Play

Essential minerals Student activity Play

Essential minerals Whiteboard exercise Play

Fertility of the soil Slideshow Play