Pulling your hand away from a hot stove is an example of a/an

Reflex arc

Explanation:

When you touch something hot, the neuron sends a signal along its axon. The nerve pathway followed by an involuntary reflex action called a reflex arc, which results to the contraction of the muscle and flexion of the forearm at the elbow.

Reflex Actions.

Explanation:

Reflex actions are activities that occur through the reflex arc, a neural path that controls one's reflex actions. it acts on impulses way before the brain is notified. Some kind of stimuli need automatic and instant responses without a need for a conscious state. The sensory neurons which act as a receptor, pick signals through the sense organs and are sent to other interconnected neurons. The spinal cord sends signals to the muscles through a motor neuron. The muscles which are attached to the sense organs where the danger is about to occur is, moved away. These signals did not reach the brain at any point.

1. (1.2kw)x(15/60hours) = .3kwh --> a

2. (5kw)x(90/60hours)x(8cents/kwh) = $0.60 --> d

3. microwave --> 1200 watts = (1.2kw)x(6/60hours) = .12kwh

coffee-maker --> 900 watts = (.9kw)x(10/60hours) = .15kwh

therefore, it requires more energy for the coffee-maker to do the same amount of work.

so the answer is a.

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