New Mexico NM-ASR Science Grade 8 Practice Questions - New Mexico Assessment Of Science Readiness - Science, Grade 8 Exam

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A population of mice lives in a sandy desert where most are light-colored. A lava flow creates a dark rocky area nearby. Over time, the mice on the dark rocks become mostly dark-colored. Which is the best explanation?

Dark-colored mice were better camouflaged on the dark rocks and were less likely to be eaten, so they survived and reproduced more The mice changed color to match the rocks on purpose The rocks turned the mice dark by staining their fur The light-colored mice moved away immediately

Correct Answer:

Dark-colored mice were better camouflaged on the dark rocks and were less likely to be eaten, so they survived and reproduced more

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