1. Observe: The color of a light wave is determined by its wavelength. On the COLOR tab, slowly drag the Light
wavelength slider back and forth and observe the effect on oxygen production. How does the color of light affect
the rate of photosynthesis?

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.