5

Set 1: Inferences (Intermediate)

Explanation

Answer: B

PASSAGE

The mantis shrimp possesses the most complex eyes in the animal kingdom, with 16 types of color receptors compared to humans' three. Paradoxically, laboratory tests suggest mantis shrimp are worse at distinguishing between similar colors than humans. Scientists theorize their visual system is optimized for speed rather than precision, allowing rapid identification of prey and predators.

What can be inferred about the mantis shrimp's visual abilities?

A. More photoreceptors always result in better color discrimination.
B. Biological complexity doesn't necessarily translate to superior performance in all tasks.✓ Correct
C. Mantis shrimp have poor eyesight overall.
D. Human color vision is the least advanced in the animal kingdom.

Detailed Explanation

16 receptors yet worse discrimination—complexity optimized for speed, not precision discrimination.

Key Evidence:

• "worse at distinguishing between similar colors"

• "optimized for speed rather than precision"

Why others are wrong: A (More receptors didn't improve discrimination.), C (Their vision is optimized for a different purpose.), D (Humans are better at color distinction.).

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