Which of the following is NOT true:

W) nanometer-thick films that roll themselves into tubes and other useful shapes have been recently discovered

X) counting annual growth lines in dinosaur bones can be used to estimate their age at death

Y) amphibian population declines and extinctions are global and rapid

Z) epiphyic plants such as many orchids are considered parasitic plants
Z) EPIPHYTIC PLANTS SUCH AS MANY ORCHIDS ARE CONSIDERED