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Thermoregulation is an example of homeostasis - the process by which the body maintains an optimum state. The body must maintain a stable temperature because extreme lows and highs of temperature can affe...

Because cytic fibrosis is a recessive genetic disease, both parents can be carriers therefore having Ff genotypes. If a punnett square is drawn, it can be seen that offspring with the genotypes FF, Ff and...

A stimuli is an environmental cue from either the internal environment or the external environment The stimuli is detected by receptors, which pass a signal along to the brain or spinal column through sen...

A neurones role is to transmit electrical impulses rapidly around the organisms body so that the organism can respond to changes in both their external and internal environments. Their structure consists ...

The reflex arc is a pathway that contorls a reflex action. Reflex actions are very fast (milliseconds fast) which can help in dangerous situations. For example, if I touch a hot pan, the reflex would be m...