The Artemia used in the investigation were in the nauplius stage of their life …show more content…
“Phototaxis is a directed movement of a freely moving organism in relation to the direction of incident light in its environment. Phototaxis is said to be “positive” when an organism moves toward the light source or “negative” when an organism moves away from the light source. […] Whereas photokinesis is the change of an organism’s speed of movement or frequency of movements in relation to the level of light energy (light intensity) that falls on the organism per unit time. Photokinesis is independent of the direction of light.” (5, p.g.