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:
Allometric growth or the variation in growth pattern such that the mass or size of any body organ or part can be expressed relatively to the total mass or size of the entire organism. It also accounts for human infants having large heads crowning over their small bodies.
Answer:
I would say 78.
Explanation:
Any value above that, and the population starts to fall off - meaning that the limit is around that number on the graph.
Answer:
The best answer here is C
Explanation:
C) The warm, wet air in a low pressure system has risen up and cooled down.
Because water molecules are polar(partially negative and postive charge)