Answer:
The first heart sound (S1) represents closure of the atrioventricular (mitral and tricuspid) valves as the ventricular pressures exceed atrial pressures at the beginning of systole (point a). S1 is normally a single sound because mitral and tricuspid valve closure occurs almost simultaneously.
Explanation:
Answer:
Beaker A= Isotonic
Beaker B = Hypotonic
Beaker C= Hypertonic
Explanation:
ISO means the same on each side.
Hypo means less.
Hyper means more.
The gradual wearing awa or breaking down of rocks<span> by abrasion is a type of? This process causes </span>rocks<span> to change composition when reacting with oxygen? </span>The mechanical breakdown of rocks by the action of other rocks and sand particles is called<span>? ... water located within the </span>rocks<span> below Earth's surface.</span>