Infection-causing organism become more and more resistant over time to the very drugs that used to kill earlier versions of them is a great example of

The buildup of sediments where a river empties into a slow-moving or nonmoving body of water is known as a/an

How are mutations continually being generated in a population (what are some of the causes of mutatuions? ) explain

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.