Explain the changes in the dominant allele over time. Your answer should include an explanation of how these alleles were passed from one generation to the next and the involvement of DNA, genes, and chromosomes. SOMEONE HELP ME QUICK ITS DUE
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19. scientists use meteorites that hit earth to provide evidence of the composition of earth's interior because they hypothesize that

Which of the following is not a food produced in rainforests? a) coffee b) cocoa c) avocados d) wheat

Which of the following best describes the purpose of the parathyroid hormone? a. it decreases the blood calcium level and decreases blood phosphorus level. b. it decreases the blood calcium level and increases the blood phosphorus level. c. it increases the blood calcium level and increases blood phosphorus level. d. it increases the blood calcium level and decreases blood phosphorus level.