Which career combines DNA technology and forensics? pharmaceuticals paternity testing environmental studies genetics

Which mantle is under the crust the upper mantle or the lower mantle i think it's upper let me know if i'm right

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.

What is any method of measuring the age of an object or event in years, such as using atomic half-life?