Which wave interaction is shown by the diagram?

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Describe the response the kidneys have to dehydration and excessive water intake. what happens to the concentration of urine in each case ?

Which statement best describes the relationship between an allele and a gene? question 1 a. an allele is a variation of a gene that can be expressed as a phenotype. b. an allele is the part of a gene that attaches to messenger rna molecules. c. an allele is a segment of a dna molecule that controls replication of a gene.