Phototaxis


Deprecated: mb_convert_encoding(): Handling HTML entities via mbstring is deprecated; use htmlspecialchars, htmlentities, or mb_encode_numericentity/mb_decode_numericentity instead in /var/www/wptbox/wp-content/plugins/wppedia/core/classes/modules/class-cross-link-content.php on line 187

is the ability of organisms to move directionally in response to a light source. Even organisms as simple as bacteria exhibit phototaxis, and therefore can be described as having ‘sight’. Phototaxis is often used to test the behavior of some animals to light after their vision has been modified. See Behavioral Testing.