A. The study of animal behavior
Answer:
The visible bodies of water are referred to as surface water. The majority of fresh water is actually found underground as soil moisture and in aquifers. Groundwater can feed the streams, which is why a river can keep flowing even when there has been no precipitation.
Explanation:
Answer:
The cell wall is what surrounds the plasma membrane of the cells of the plants, and it provides tensile strength and protects it against mechanical and osmotic stress. It allows the cells to develop turgor pressure as well. Turgor pressure is the pressure of the cells contents against the cell wall.
Aortic regurgitation is a condition in which the heart's aortic valve is loosely closed which result in the flow of the blood from the aorta into the left ventricle in the reverse direction during ventricular diastole . Therefore, the cardiac muscle is compelled to function harder than normal. Left ventricular hypertrophy, shortness of breath (dyspnea) and pulmonary edema are the effect that aortic regurgitation produces in the body.