Heartbeat becoming faster before a race is an example of which coordination?
Answer and explanation
Correct answer: Adrenaline-based chemical coordination during stress
The governing concept is hormonal coordination during the emergency or stress response. Anticipation of a race can produce excitement or stress, causing the adrenal glands to release adrenaline. This hormone increases heart rate and helps direct the body toward rapid muscular activity. Phototropism concerns plant growth, insulin regulates blood glucose rather than taste, and roots do not grow through spinal control. Thus, option A is correct.
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What is the correct answer to this question?
Adrenaline-based chemical coordination during stress
Why is this the correct answer?
The governing concept is hormonal coordination during the emergency or stress response. Anticipation of a race can produce excitement or stress, causing the adrenal glands to release adrenaline. This hormone increases heart rate and helps direct the body toward rapid muscular activity. Phototropism concerns plant growth, insulin regulates blood glucose rather than taste, and roots do not grow through spinal control. Thus, option A is correct.
Which subject and chapter does this question cover?
This is a Class 10 Science question. Chapter: World of Living. Topic: Control and Coordination.
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