D. Ecstasy. MDMA is the pure form of ecstasy.
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Answer:
They benefit society by treating patients and raising awareness of health related issues. They conduct research by examining healthy people and use what they learn to help others achieve the same. One subfield includes developmental psychology which is the study of how people grow and change over time.
Explanation:
<span>The answer is letter B. <span>
<span>Motor
neurons tend to function less as age sets-in in a particular individual.
Reaction time is the ability to respond quickly to stimulus presented in a
given situation. An example of this is the gun start that is commonly used in
athletic competitions where a person reacts quickly to the signal and performs
the activity. As we age, our
sensory systems deteriorate and as a result some of the skills we have when we were
younger are not as effective as it was when we turned into mature adults. </span></span></span>
The answer would be D because the proportion is 6:9, which could be simplified to 2:3
