Im sorry hindi ko alam kung ano ang iyong humihingi ng paumanhin :(
<em>Answer:</em>
<em>D. a signal; a chemical; auxin </em>
<em>Explanation:</em>
<em>Phototropism</em><em> is described as a phenomenon that involves the growth of a specific organism as an outcome towards a light stimulus. It is generally observed or found in plants yet occurs in a few other organisms, for example, fungi. The different cells that are being found on the plants that are placed far from the light posses a specific chemical known as 'auxin' that generally reacts when the "phototropism" occurs.</em>
im not too quiet sure but I think the answer is b
Officers must respect the rights of citizens at all times
Differences between experts and novices are almost always a function of Learning,
as opposed to a more view that intelligence or other innate differences make the difference
hope this helps