Still, Cuccinelli has shown his own tropism toward the kindness of strangers.
The workers, on the other hand, who have to be in and out of the nest about their business, do not have this tropism.
The object of the tropism is to keep the males and females in the nest until swarming time, and then to get them out.
We shall in the succeeding series of papers deal with the subject of tropism in general.
Driesch has found that a tropism underlies the arrangement of the skeleton in the pluteus larvae of the sea-urchin.
As a type of human behavior it may be explained, like the attraction of the flame for the moth, as a sort of tropism.
This may be a tropism (stereotropism) or it may be a mere surface tension phenomenon.
tropism tro·pism (trō'pĭz'əm)
The turning or bending movement of a living organism or part toward or away from an external stimulus, such as light, heat, or gravity.
The growth or movement of a living organism or anatomical structure toward or away from an external stimulus, such as light, heat, or gravity. See also geotropism, hydrotropism, phototropism.