a type of orientation viewed in both aminals and plants away from or toward a stimulant, like gravity or sunshine.

TROPISM: "Tropism is to blame for why many household hanging plants will intertwine themselves into the fabric of curtains in windows in which they are hung."
Cite this page: N., Pam M.S., "TROPISM," in, April 29, 2013, (accessed August 4, 2020).