Explanation: Separation of homologous chromosomes occurs after the formation of tetrads, during anaphase I of meiosis. All of the other answers are processes that occur during both meiosis and mitosis. Both divisions require the condensation of chromosomes and eventual cytokinesis to produce daughter cells.
When blood is rich in carbon dioxide it leaves the heart through the pulmonic valve, into the pulmonary artery and to the lungs. (All of which have to do with the circulatory system)
A chromosome is made of both one DNA molecule wound around small protein molecules whereas DNA is just one large molecule called deoxyribose nucleic acid.
