i., bak. phototaxis

listen to the pronunciation of i., bak. phototaxis
التركية - الإنجليزية
phototaxy
The influence of light on the movements of low organisms, as various infusorians, the zoöspores of certain algæ, etc
also, the tendency to follow definite directions of motion or assume definite positions under such influence
If the migration is toward the source of light, it is termed positive phototaxis; if away from the light, negative phototaxis
{i} response or movement in response to light stimulus (Biology)