Explanation:
There are many forms of dance, from ballroom to barn dancing and disco to Morris dancing. Dance has always been a part of human culture, rituals and celebrations. Today, most dancing is about recreation and self-expression, although it can also be done as a competitive activity. Dancing is an enjoyable way to be more physically active and stay fit.
Answer:
Reduced levels of the neurotransmitters serotonin and norepinephrine may also contribute to the development of ADHD.
Explanation:
Answer:
Emphysema.
Explanation:
COPD (Chronic obstructive pulmonary disease) is the medical condition that causes inflammation in lungs and makes breathing problematic. Chronic bronchitis and Emphysema are the two main conditions included in COPD.
Emphysema is the extreme lung condition of COPD that causes the breath shortness. The alveoli are completely damaged and also reduces the amount of oxygen in the body. The emphysema condition causes the decrease in the lung surface area and reduces the amount of oxygen.
Thus, the answer is emphysema.
Answer: A
Explanation: The blood–air barrier (alveolar–capillary barrier or membrane) exists in the gas exchanging region of the lungs. It exists to prevent air bubbles from forming in the blood, and from blood entering the alveoli. ... The barrier is permeable to molecular oxygen, carbon dioxide, carbon monoxide and many other gases.
