T1R1O1P3I1S1M3S1
12 points
TROPISMS is validvalid
TROPISM, the involuntary response of an organism to an external stimulus [n]
TROPISM, the response of an organism to an external stimulus [n]
TROPISM, the involuntary response of an organism to an external stimulus [n]
TROPISM, the response of an organism to an external stimulus [n]