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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.

Related tags

AdrenalineHeartbeatStress ResponseHormonal CoordinationControl And CoordinationWorld Of LivingScienceClass 10 Mcq

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