Which Vitamin Can Be Synthesized in Significant Amounts by Humans

question 9

Multiple Choice

Which vitamin can be synthesized in significant amounts by humans?

• A) vitamin D
• B) vitamin E
• C) ascorbic acid
• D) retinoic acid
• E) carotenoids

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Definitions:

Fixed-interval

In operant conditioning, a schedule of reinforcement where the first response is rewarded only after a specified amount of time has elapsed.

Variable-ratio

A reinforcement schedule in operant conditioning where a response is reinforced after an unpredictable number of responses, enhancing the robustness of the behavior.

Variable-ratio

A schedule of reinforcement where a response is reinforced after an unpredictable number of responses, leading to a high and steady response rate.

Fixed-ratio

A schedule of reinforcement where a response is reinforced only after a specified number of responses, often used in behavior analysis.