For more flowers to grow, _ must take place. In pollination, pollen is transferred from the _ to the _. In detail, pollen is transferred from the _ of the stamen to the _ of the pistil. In some flowers, pollen falls on the stigma of the _ flower; _-pollination occurs. In other flowers, pollen from _ flower falls on the stigma of a _ flower; _-pollination takes place.

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.