the child feeding stimulates milk production which causes further feeding (continues until baby stops feeding)

Oxytocin stimulates the muscle contractions that push the baby through the birth canal.

detected by a receptor

stretching of uterine walls cause contractions that further stretch the walls (this continues until birthing occurs)

the regulation of body temperature via endotherms

is activated to induce the same effect – this promotes further change

the dominant follicle releases oestrogen which stimulates LH and FSH release to promote further follicular growth

can be harmful, as in case of fever that causes metabolic changes pushing it to be higher.

will continue to amplify the initial change until the stimulus is removed

platelets release clotting factors which cause more platelets to aggregate at the site of injury

construction of the skin blood vessels and contraction of the skeletal muscles when it is too cold

often a result of infection or injury and involve the disruption of normal homeostasis.