<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>
Is there Any answer choices
Salvatore's behavior is consistent with socio-emotional selectivity theory
.
<h3><u>Explanation:</u></h3>
The theory that recognizes the change in terms of cognitive influence especially as one age. It maintains that with age people become selective and they tend to invest in goals and activities that nurture their emotional well-being. As people age, they prefer positivity instead of negative information.
Being selective and narrowing social interactions improves "positive emotional experiences" and decreases negative experiences. Furthermore, the theory also recognizes that goals as one age tend to lean towards gaining more knowledge, career planning and others that will have a positive impact in the future.