Answer: 450.28
Explanation:
225 divided by 3.14=71.7 so R=71.7 and the diameter would be 143.4 and C=3.14x143.4= 450.28
Operant conditioning is reinforcement, classical conditioning relies more on association between stimuli and responses. A second distinction is that much of operant conditioning is based on voluntary behavior, while classical conditioning often involves involuntary reflexive behavior.
<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>