The root system of a grass plant interacts with the vascular system to increase the ability of the plant to Group of answer choices a. absorb carbon dioxide for photosynthesis
b. manufacture pigments for protection
c. obtain nutrient molecules
d. carry on gas exchange and absorb inorganic substances

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.