अतिरिक्त संसाधन

• Life processes: http://www.bbc.co.uk/ bitesize/ ks3/ science/ organisms_behaviour_health/ life_processes/ revision/ 2/ [Tip: hold Ctrl and click a link to open it in a new tab. (Hide tip)]
• Antagonistic muscles: http://www.bbc.co.uk/ bitesize/ ks3/ science/ organisms_behaviour_health/ life_processes/ revision/ 8/