What is the difference between a heterogeneous mixture and a homogeneous mixture?

question 4 options:

a heterogeneous mixture is a pure substance and a homogeneous mixture is not.

a heterogeneous mixture has particles that are not uniformly distributed, but a homogeneous mixture has particles that are uniformly distributed.

a homogeneous mixture is a pure substance and a heterogeneous mixture is not.

a homogeneous mixture has particles that are not uniformly distributed, but a heterogeneous mixture has particles that are uniformly distributed.

Which phase of the cell cycle ensures that identical copies of the dna are made for daughter cells?

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.

Which substance contains thylakoids? a) nadph b)atp c)stroma d)chloroplast