Why is the sequence of amino acids important to the properties of a protein and determination of the protein produced? A. It determines how the biochemical folds into a three-dimensional structure. B. It retains and transmits important biological information. C. It stores energy and provides covering to avoid water loss. D. It stores energy and provides structural support for cells.

the "dirty dozen" chemicals banned in an international treaty are formally known as persistent organic pollutants, or pops. the united nations environment program provided this background on what they are and what they can do to humans and wildlife.

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explanation:

many other transport proteins, often called pumps, move materials against a concentration gradient. active transport drives molecules across a membrane from a region of lower concentration to a region of higher concentration. this process, shown in figure 5.1, uses transport proteins powered by chemi- cal energy.