<span>Severe depression that has a sudden onset or seems not to have any
external cause whatsoever is called major depression. Major
depression is sometimes referred to as </span>unipolar disorder or major
depressive<span> disorder (MDD); typical signs of MDD include
persistent feeling of sadness or a lack of interest in outside stimuli.</span>
Answer:
First level
Explanation:
The physical activity pyramid is a visual representation demonstrating how to increase physical activity until it becomes a part of daily routine.
Lifestyle activities are the first step of the physical activity pyramid.
Lifestyle activities are moderate physical activities that are performed daily. The examples for moderate physical activities are housework, yardwork, non-vigorous sports, taking the stairs instead of the elevator.
The Answer to the question
A. Nitrogen
Or you will pass out and dye
Answer:
1. The urinary system cleans the blood in the circulatory system. Blood traveling back to the heart passes through the kidneys in the urinary system. The kidneys clean the blood and control the amount of salt, water, and other substances in the blood.
2&3.The circulatory and respiratory systems work together to circulate blood and oxygen throughout the body. Air moves in and out of the lungs through the trachea, bronchi, and bronchioles. Blood moves in and out of the lungs through the pulmonary arteries and veins that connect to the heart.
4.The point is, without the respiratory system your blood would be useless. The circulatory and respiratory systems work together to circulate blood and oxygen throughout the body.
Explanation:
