Which of the following is NOT typically true about lichens:

W) lichens produce a rock-dissolving acid as they grow

X) few animals other than caribou can eat lichens

Y) lichens take nutrients from the air

Z) lichens are prone to desiccation and death if water is withheld for more than a few days
Z) LICHENS ARE PRONE TO DESICCATION AND DEATH IF WATER IS WITHHELD FOR MORE THAN A FEW DAYS