Biology for IGCSE & O level - Variation And Selection (Section 7 - No. 3)
Individuals of a species of flightless sand- burrowing beetle range in colour from pale brown to almost black. The beetles have the same colour as the sand in which they live. The reason for this is likely to be:
Beetles are well camouflaged so that predators cannot see them.
Beetles change colour to match their surroundings.
Beetles are subject to artificial selection.
Beetles absorb more heat.
Explanation
Camouflage is the adaptation most likely to aid survival in an environment where predators might be present.
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