Neco Model Questions Vol1 2025 Biology Question 4
Practice objective / multiple choice question 4 from the 2025 Neco Model Questions Vol1 Biology examination.
In a simple spinal reflex, the sensory neuron conducts impulses over a distance of \(0.8\ \text{m}\) at \(55\ \text{m s}^{-1}\), and the motor neuron conducts over \(0.6\ \text{m}\) at \(45\ \text{m s}^{-1}\). Each synapse in the reflex arc introduces a delay of \(0.5\ \text{ms}\). Calculate the total time from stimulus onset to muscle contraction (in ms) and state whether this reflex qualifies as a fast reflex (≤ 5 ms).
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This is Neco Model Questions Vol1 2025 Biology Question 4. It is one of the objective questions from the 2025 Neco Model Questions Vol1 Biology examination.
Difficulty level: Medium .
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