Answer:
2)to sometimes store nutrients and water
3)to hold the plant up
4)help pass water and nutrients from the roots to the rest of the plant
Explanation:
Because she is afraid that it will pain and scratch her.
If the Earth's axis tilted 45 degrees instead of the current 23.5 degrees, the seasons would be far more pronounced than they are, and the poles would be warmer overall. ... An axial tilt of 45 degrees would bring more heat to bear on the hemisphere facing the sun.
D. The reaction absorbs energy from its surroundings
Heat is a form of energy, so if the chemical reaction makes its surroundings become colder, it is absorbing heat energy.
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:
