• what is the definition of homeostasis
• why are communication systems needed in multicellular organisms
• negative feedback and how it works
• positive feedback and how it works
• examples of positive feedback - for understanding
• examples of negative feedback - for understanding
• what is thermoregulation?
• how can organisms gain and lose heat
• ectotherms definition
• what behaviours can reduce body temperature for ectotherms
• what behaviours can increase body temp for ectotherms
• endotherms definition
• behavioural responses for endotherms
• what physiological responses do ectotherms have?
• Why do ectotherms need less food than endotherms?
• what are the different physiological ways organisms cool down?
• what are the different physiological ways organisms gain heat
• how do arctic endotherms adapt to their environment?
• what are the 2 control centres controlling thermoregulation in endotherms?
• where and what are peripheral temperature receptors?