Infections of the digestive system Slideshow Play

Influence of physical effort on the human body Animation Play

Information flow in the nervous system Whiteboard exercise Play

Introduction to the nervous system Student activity Play

Introduction to the nervous system Whiteboard exercise Play

Invention of the voltaic cell Animation Play

Involuntary functioning of the nervous system Whiteboard presentation Play

Involuntary functioning of the nervous system Class activity Play

Is the given point a solution of the system of inequalities? Game Play

Is this system at equilibrium? Student activity Play

Is this system at equilibrium? Whiteboard exercise Play

Kidney – main organ of the human excretory system Illustration Play

Lactic acid Slideshow Play

Large and small forces Glossary Play

Large and small forces Student activity Play

Length of pencils Animation Play

Let us draw a road in the coordinate system Student activity Play

Levels of cell organization in the organism Slideshow Play

Lines in a 3-D coordinate system Animation Play

Locomotion in annelids Animation Play

Macroelements Student activity Play

Male reproductive system Whiteboard exercise Play

Male reproductive system Slideshow Play

Male reproductive system Illustration Play

Male reproductive system Simulation Play