Muscles work antagonistically Whiteboard exercise Play

Negative effects of doping on the circulatory system Slideshow Play

Negative feedback mechanism Illustration Play

Nematodes Student activity Play

Nematodes Whiteboard exercise Play

Nematodes (phylum Nematoda) Student activity Play

Nervous system Whiteboard exercise Play

Nervous tissue Slideshow Play

Nuclear radiation and live organisms Illustration Play

Nuclear radiation and live organisms Student activity Play

Nutrient conducting tissue Student activity Play

Nutrient conducting tissue Whiteboard exercise Play

Opposing action of the two divisions of the autonomic nervous system Student activity Play

Opposing actions of the divisions of the ANS Animation Play

Organism; system; organ; tissue; cells Illustration Play

Organism's adaptation to long-time effort Slideshow Play

Organs and tissues that store glycogen Slideshow Play

Other functions of epidermal tissue Whiteboard exercise Play

Other functions of epidermal tissue Student activity Play

Oxygen debt Animation Play

Oxygen debt in sportsmen Whiteboard exercise Play

Packing tissue Student activity Play

Period of puberty Slideshow Play

Physical effort and circulation Student activity Play

Physical effort and our body Student activity Play