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An unknown mineral sample scratches a glass plate but cannot be scratched by a carpenter's nail. for identification purposes, how is the mineral's hardness described?
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Which of these serves as a reference for comparison during a scientific investigation? a)outcome variable (dependent variable) b) test variable (independent variable) c)control group d)hypothesis
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Mutations associated with albinism affect proteins involved in synthesis
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Based on the number of offspring they produce at one time organisms are classified into two categories many offspring at once and a few at a time sort the carry sticks based on the category they describe
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An unknown mineral sample scratches a glass plate but cannot be scratched by a carpenter's nail. for...
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