Question 25.AP.2: Cat’s Eyes BIO Cats’ eyes have vertical pupils in dim light....

Cat’s Eyes BIO

Cats’ eyes have vertical pupils in dim light. Which would cats be most successful at resolving at night, headlights on a distant car or vertically separated running lights on a distant boat’s mast having the same separation as the car’s headlights?

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The effective slit width in the vertical direction of the cat’s eye is larger than that in the horizontal direction. Thus, it has more resolving power for lights separated in the vertical direction and would be more effective at resolving the mast lights on the boat.

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