Which outcome impairs a harbor porpoise locating prey using echolocation within a shipping channel?

💡 Explanation

Excessive vessel noise overlaps the porpoise's echoes, a phenomenon called masking, impeding their ability to discriminate prey signals. Because of the masking effect, the porpoise cannot effectively hunt, rather than being limited by signal distances or distortions from reverberation or refraction.

• Which mechanism triggers increased cutaneous vasodilation in mammals exposed to heat?
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• Which consequence results when a chameleon hunts from direct sunlight?
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