Which is not an example of matter and energy cycling through living things?

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.

Hemoglobin is a proton that carries oxygen around the body what is hemoglobin made from

How does the color of light affect the germination time (amount time a plant takes to develop) of a radish seed?