Control and communication > stimulus

This is a paper exercise. Data relating to sweating and body temperature are presented on the student sheet with questions guiding presentation and analysis.

This is a paper exercise, with a presentation on the student sheet of a classic investigation for the students to interpret.

All organisms depend heavily on their gaseous environment to supply them with oxygen and remove their waste carbon dioxide. This procedure explores the effect of a change in gaseous composition of the atmosphere on an organism’s breathing. Two hypotheses could explain the change in breathing rate:

This lesson is designed to exemplify a model-based inquiry approach to practical work. It is based around a model for human colour perception which describes colour-sensitive receptors (cones) in the retina.