[shaZ-]

i came across this question in my textbook.. any help would be appreciated. =)

The alpine region of the Snowy Mountains, especially the feldmark or stonefields, provides a hostile terrain for most plants. In winter it is covered by snow; in summer, there is a dramatic fluctuation in diurnal temperatures. Such dramatic fluctuation results from the lack of plant cover and from the miday heat scorching the rocks, causing them to heat up as soon as the sun sets. the snow heath (Epacris petrophila) is a small prostrate shub that grows incredibly slow over the ground, covering about 10 millimetres in one year. Explain on physiological adaptation of the snow heath to changes in ambient temperature.