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Explain what happens to a young growing seedling when exposed to unidirectional source of light

Explain what happens to a young growing seedling when exposed to unidirectional source of light

Answers

John
When the finger touches a very hot object; pain receptors in the skin of the finger are stimulated

Nerve impulses are triggered off and transmitted through the sensory neuron to grey matter of the spinal cord;

The impulse is then transmitted to the relay neurone, through the synapse and then to the motor neurone; through another synapse

Through the ventral root, the impulse is transmitted to the effector organ (bicep of the arm) which contracts and the forearm is withdrawn; and thus the finger is raised from the hot object
johnmulu answered the question on November 3, 2017 at 07:28

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