Which of the following human activities reduces biodiversity? A. prohibiting hunting in wildlife preserves
O B. taking tissue samples from members of endangered species
O C. planting only native grass species to prevent erosion beside highways
O D. planting only red pine trees to replace native hardwood forests cut for lumber

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.