So by looking at the seismic waves from earthquakes the scientist learned about the crust and the mantle but they also learned about the outer and inner core. To do this you have to look at a different kind of waves, the S (secondary waves) waves that also get released by an earthquake.
Answer:
D.
Explanation:
The primary function of capillaries is the exchange of materials between the blood and tissue cells.
The component is called 'resting metabolic rate. It operates when the body is at complete rest. It can also be called basal metabolism.
The answer is A. random gene pool changes in small population.