Figure 1 shows a reflex in the iris of the human eye in response to changes in light levels. Describe the changes in the pupil and iris going from A to B in Figure 1. Explain how these changes occur. Refer to the changes in light level in your answer. – 7062

Q1.

Figure 1 shows a reflex in the iris of the human eye in response to changes in light levels.

Describe the changes in the pupil and iris going from A to B in Figure 1. Explain how these changes occur. Refer to the changes in light level in your answer.

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