2007-03-10 16:26:34 · 3 answers · asked by Taharqa 3 in Science & Mathematics ➔ Botany
cellulose is amazing material, elastic shape of walls are the key. it is also resistant to the sharp edges of the crystals formed when liquids freeze.
sap is a hydrocarbon, unlike water, it shrinks when it freezes, never expands. water is the anomaly here. and a mix of water and hydrocarbon means almost a net change of nothing as it freezes, so it just stays still. sap remains in place until it warms enuff to start running again.
that ok?
2007-03-10 16:35:00 · answer #1 · answered by johnjohnwuzhere 3 · 2⤊ 0⤋
Put simply they don't. They go into a suspended animation and wait until the weather warms up.
2007-03-11 21:59:21 · answer #2 · answered by DIANNE M 3 · 0⤊ 0⤋
They Fed X them.
2007-03-11 00:34:11 · answer #3 · answered by johN p. aka-Hey you. 7 · 0⤊ 0⤋