Important features of diagram: 1) All relevant structures are present; 2) structures are correct relative sizes; 3) structures drawn in correct locations; 4) labels are straight, precice & non-overlapping; 5) drawing is neat and without shading.

Draw a diagram of an E. coli bacterium

Draw a diagram of a liver cell

Draw a diagram to show the structure of membranes

Draw a diagram showing the structure of water molecules

Draw the chemical structure of DNA

http://www.youtube.com/watch?v=qy8dk5iS1f0&feature=related

Draw a diagram of the carbon cycle

http://www.youtube.com/watch?v=OByqdUhWERk&feature=relatehttp://epa.gov/climatechange/kids/carbon_cycle_version2.html

Draw a diagram of the digestive system

Draw a diagram of the heart

Draw a diagram of the structure of a motor neuron

Draw a diagram of the adult male reproductive system

Draw a diagram of the adult female reproductive system

Draw a diagram showing a sigmoid population growth curve

Draw a diagram of the ventilation system