our water pipes, and the led in some water sources.
Lower esophageal sphincter! <span />
a buffer, A solution that can receive moderate amounts of either acid or base without a significant change in ph
DNA is a group of nucleotides that are linked together. The hydrogen bonds are responsible in making the double helix structure stable. The two strands of DNA are linked and stays in a stable shape because of the hydrogen bonds located between adenosine and thymine base pairs. Three hydrogen bonds are between cytosine and guanine.