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Meanders are formed in the middle course of a river. As the river gains more velocity, the water is pushed to the outside of the river causing more erosion on the outside bend, which forms a steep river c...

First look at the command words in the question, to properly establish how to and what to use to answer the question. This questions has two elements, 'opportunities' and 'challenges' therefore good to di...

The sequence of bases in the DNA determines the exact order of the amino acids in the protein. Every three adjacent bases on the DNA strand, called a codon, encodes a particular amino acid. The DNA cannot...