Video: Describing Some True Advantages of Reflex Actions

Which of the following is not an advantage of having reflex actions? [A] Reflex actions prevent a person from feeling pain. [B] Reflex actions take care of basic bodily functions like breathing and heart rate. [C] Reflex actions are involuntary. [D] Reflex actions do not require the brain to think about responses before acting. [E] Reflex actions allow a quick response to danger.

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Video Transcript

Which of the following is not an advantage of having reflex actions? (A) Reflex actions prevent a person from feeling pain. (B) Reflex actions take care of basic bodily functions like breathing and heart rate. (C) Reflex actions are involuntary. (D) Reflex actions do not require the brain to think about responses before acting. (E) Reflex actions allow a quick response to danger.

This question is asking us to read the answer choices and choose the one that is not an advantage of having reflex actions. So, we can expect for four of these choices to represent things that are advantages of having reflex actions. And we’re looking for the one choice that is not an advantage. In order to answer this question, first, we’ll review what we know about reflex actions.

A reflex can be defined as an action that does not require conscious control. This means that reflexes are involuntary or that they happen automatically. It also means that you don’t have to think about them. Our reflexes are adaptations. That means that they each have a purpose in helping us to survive. Reflex actions can happen very quickly, since you don’t have to think about them before they’re carried out.

Many reflex actions, such as pulling your hand away quickly from a hot stove, are meant to prevent injury to your body. Other reflexes, such as ducking and covering your head when you spot a fast-moving object, are reactions that help you to avoid danger. With this information in mind, let’s read through our answer choices again. We’ll mark down which of these represent advantages and which do not.

Reflex actions prevent a person from feeling pain. Well, when you touch something hot and reflexively pull your hand away, it’s true it may hurt more if you held it there longer. But the reflex action doesn’t prevent you from eventually feeling the pain of the burn. This one is not an advantage of having reflex actions.

Reflex actions take care of basic bodily functions, like breathing and heart rate. Well, your breathing and your heart rate are involuntary, and they generally occur without any need for your conscious thought. Imagine if you constantly had to concentrate on keeping your heart pumping. Taking care of bodily functions is an advantage of reflex actions.

Reflex actions are involuntary. Well, the fact they happen automatically is part of how they happen so quickly. This is another advantage of having reflex actions. Reflex actions do not require the brain to think about responses before acting. Once again, the fact that reflex actions do not require conscious thought is part of the reason that they can occur so rapidly. This is an advantage of having reflex actions.

Reflex actions allow a quick response to danger. One of the main advantages of reflex actions is that they occur rapidly and allow you to avoid danger. So, the choice that is not an advantage of having reflex actions is reflex actions prevent a person from feeling pain.

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