Which pair of statements best describes an essential amino acid? it is an amino acid that contains peptide bonds. an example is proline. it is an amino acid that contains nitrogen. an example is aspartic acid. it is an amino acid that cannot be made by the body. it must be obtained from eating certain foods. it is an amino acid that can be produced by the body. vitamin supplements maintain healthy levels.

What happens when a magniseum ion ia atracked to a chlrene ion

Regarding most of the narrator’s story, which word best describes the tone?

Hormones are chemical molecules produced by endocrine glands. one such endocrine gland is the thyroid gland, which synthesizes the thyroid hormone, which in turn affects the heart muscles. which two statements describe the probable reason for the function of the hormone? the cells in the heart have specific receptors that allow for the intake of hormones. the heart and the endocrine glands have the exact same types of cells. all cells make the same types of hormones. thyroid hormones show their effect on the heart by means of specialized cells. thyroid cells and cardiac cells have different dna.