Answer:
Mutation is important as the first step of evolution because it creates a new DNA sequence for a particular gene, creating a new allele.
Explanation:
Enzymes split the DNA molecule into two rails and then transport corresponding nitrogen bases to each rail. I think this is the answer
Phospholipids will form a bilayer in water because they contain hydrophobic (Water fearing.. in this cause water "hating") tails and hydrophilic heads (water loving). So they form a bilayer to remove the tails from water likewise, this satisfies the hydrophilic heads because they are still exposed to water.
An in-breath is that you are breathing in Oxygen. And and out-breath you are breathing out Carbon Dioxide