Which Which statements describe differences between metaphase I and metaphase II? Select two options. Chromosomes line up in the middle in metaphase I only. Chromosomes condense in metaphase I only. A cell has half the number of chromosomes in metaphase II. There are twice the number of cells in metaphase II. Spindle fibers exist in metaphase II only. stage of the cell cycle involves cell growth and DNA replication? mitosis cytokinesis interphase prophase

Define the apical impulse and describe its normal location, size, and duration. which abnormal conditions may affect the location of the apical impulse? explain the mechanism producing normal first and second heart sounds. describe the effect of respiration on the heart sounds. describe the characteristics of the first heart sound and its intensity at the apex of the heart and at the base. describe the characteristics of the second heart sound and its intensity at the apex of the heart and at the base.