True or false? Living things exist alone and have no interaction with other living things or their environment.

1. describe the structure and function of the specialized cells you observed in the video. 2. research the types of cells present in the kidney.

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.

Which of the following describes what an activator an enhancer are