Answer:
Nitrogen is a naturally occurring element that is essential for growth and reproduction in both plants and animals. It is found in amino acids that make up proteins, in nucleic acids, that comprise the hereditary material and life's blueprint for all cells, and in many other organic and inorganic compounds.
Explanation:
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Answer:
Nasal cavity, larynx, trachea, bronchi, bronchioles, alveoli.
Explanation:
The air travels through the respiratory system during inhalation in the next order:
- <em><u>Nasal cavity:</u></em> You inhale air into your nose.
- <u><em>Larynx:</em></u> The air travels down to this organ, a hollow, tubular structure that plays a key role in phonation, respiration, and deglutition.
- <u><em>Trachea:</em></u> (Or <em>windpipe</em>) is a wide, hollow and cartilaginous tube that connects the larynx to the bronchi.
- <em><u>Bronchi:</u></em> The trachea divides into two primary bronchi; they are the main passageway into the lungs.
- <em><u>Bronchioles: </u></em>The bronchi develop smaller the closer they get to the lung tissue and are then consider bronchioles.
- <em><u>Alveoli:</u></em> They are tiny air sacs located at the end of the bronchioles, which is the site of oxygen and carbon dioxide exchange in the respiratory system.
The female duct system is composed of the following organs:
a. Fallopian tubes - this is like a bridge that serves as a passage way for eggs from the ovaries to be delivered to the uterus.
b. Ovaries - are egg cells within the female reproductive system that when mature may develop into a fetus or become a regular menstrual period for women.
c. Uterus - This is where the mature ovaries begin to develop and start to form new life.
Hello!!
In the human digestive system, food enters the mouth and mechanical digestion of the food starts by the action of mastication (chewing), a form of mechanical digestion, and the wetting contact of saliva.
hope this helps!!
