English Phototaxis Cited by user Epipelagic on 22 Jul 2021 Phototaxis is a kind of taxis, or locomotory movement, that occurs when a whole organism moves towards or away from a stimulus of light.
English Eyespot apparatus Cited by user Cieliosi on 17 Apr 2009 The eyespot apparatus (or stigma) is a photoreceptive organelle found in the flagellate or (motile) cells of green algae and other unicellular photosynthetic organisms…