(a)[6]
Describe the ways in which the human and the plant coordinate their responses to these beams of light. Your answer should include: how the stimulus is detected; the method of response.
(b)[4]
Describe how synapses function in a reflex arc.
Biology 5090 · O Level · Mammalian nervous system
Mammalian nervous system — practice question
A narrow beam of intense light is directed into a human eye for two seconds. A comparable beam of light is directed at one side of the tip of a plant stem for several days.