Organ systems of the human body interact to maintain a balanced internal environment. as blood flows through certain organs of the body, the composition of the blood changes because of interactions with those organs. state one change in the composition of the blood as it flows throug the respiratory system.

Follow the directions for self-quiz question 8, draw it, by labeling the appropriate structures with these terms, drawing lines or brackets as needed: chromosome (label as replicated or unreplicated), centromere, kinetochore, sister chromatids, nonsister chromatids, homologous pair, homologs, chiasma, sister chromatid, cohesion