When a flu virus enters the body, the immune system creates antibodies made of polypeptide chains to fight the virus. The specific shape of the protein allows it to bind to the virus and deactivate it. How does the antibody’s primary protein structure create the specific shape to bind to flu viruses? The sequence of amino acids determines where hydrogen bonds form between segments of the polypeptide backbone. The hydrogen bonds and interactions between the side chains give the antibody its shape. The sequence of amino acids determines where hydrogen bonds form between the amino acids’ side chains. The peptide bonds and interactions between the side chains give the antibody its shape. The antibody’s primary structure consists of hydrogen bonds formed between segments of the polypeptide backbone. These determine how the amino acids’ side chains will interact, which gives the antibody its shape. The antibody’s primary structure consists of disulfide bridges that twist and bend the polypeptide chain and give the antibody its shape. The antibody’s shape allows it to bind to a protein from the virus.

answer:

the water molecules are transferred from the roots to the stem or top parts of the tall tree because of important properties of water which are adhesion, cohesion and capillary action. cohesion is the property of water molecules keeps water molecules in a combined state by sharing of bonds between them at the atomic level. adhesion allows the interaction of water molecules with other substances or substrate. adhesion will cause the attachment of water molecules to the wall of the vessel (xylem) of the plant. capillary action occurs when the adhesive force to the vessel wall is stronger than the cohesive force between water molecules. capillary action mimics the transfer of water from a tube or pipe. in this way water utilizes its property to transfer water from down to top level of the plant.  

a researcher conducts an experiment on the secretion of a particular hormone in mice. scientists inject mice with a substance that stimulates the production of the hormone. the scientists then test the levels of hormones produced by the mice. the tool used to measure the hormones consistently detects the levels at 10 points lower than the actual hormone levels in the mice. this tool makes measurements, but the measurements aren't .

explanation:

no u

maybe because its impossible for balloons to lift a whole entire house.