Final answer:
Fear is a biological process that activates the fight-or-flight response, which was crucial for our ancestors' survival and continues to be triggered in modern humans by psychological stresses.
Step-by-step explanation:
True, fear is indeed a biological process by which animals, including humans, secure the necessary energy to do a job that really matters. It's essential in situations where survival is at risk, and this response is known as the fight-or-flight response. This response involves physiological changes like the release of hormones by the adrenal glands, which prepares the body to either defend itself or escape from danger. While this was crucial for our ancestors in facing physical threats, modern humans often experience this response in situations that are psychologically stressful, like giving presentations or taking tests. Though not physically life-threatening, these scenarios still trigger a similar response, which can lead to negative health consequences if the stress is persistent, due to the body being in a constant high-alert state.