What do cinders, ash, and lava all have in common? they all travel thousands of kilometers by air after volcanic eruption. they all flow slowly down the sides of volcanoes after eruption. they are all different forms that magma takes after a volcanic eruption. they are all formed during effusive, but not explosive, eruptions.

Describe the primary and secondary immune response in terms of speed and number of antibodies produced?

How many major plates cover the earth

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.