3.+Physiological+adaptations

Physiological adaptations

play the [|nervous system game] ||
 * ~ What is to be learned ||~ Activities ||
 * Organisms can tolerate a range of normal conditions
 * Normal range for tolerance
 * Imortance of maintaining a relatively constant internal environment
 * The factors that can contribute to the failure of homeostasis
 * The negative feedback mechanism
 * An example of what will happen in extreme cases when the normal range is exceeded || Go to the Control, regulation and feedback website and work through the introduction, animation, feedback and quiz. ||
 * Nerve control is used in complex organisms
 * Parts of the nervous system
 * To be able to distinguish between a nerve, neurone and nerve fibre
 * To be able to summarise the different links of neurones
 * To be able to distinguish between motor functions and visceral functions
 * Receptors ability to detect stimuli || Watch the YouTube video on the nervous system   media type="youtube" key="xRkPNwqm0mM?fs=1" height="222" width="306"  then
 * Hormone control is used in organisms
 * To learn about the endocrine system
 * To learn about the major endocrine glands, the hormones they secrete and the function of the hormones as related to homeostatis
 * To be able to compare the hormonal and nervous systems || Complete pages 1 to 10 from the [|Hormones and their Effects] website ||
 * Organisms can regulate their water balance and control their temperature
 * To learn the difference between endotherms and ectotherms
 * To learn the definitions for homeothermic and poikilothermic || Watch the YouTube video on disecting a kidney

media type="youtube" key="JBsUUYZKAlU?fs=1" height="309" width="308" then Examine the differences between endotherms and ectotherms ||