nasopharynx, oropharynx, laryngopharynx in these order does air inhaled through the nose travel, from superior to inferior.
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What is nasopharynx?</h3>
- Behind the nose, the top of the throat.
- The nasopharynx has a passageway leading into each ear on either side.
- The top section of the throat (pharynx), which is located behind the nose, is known as the nasopharynx.
- It is a box-shaped chamber with edges that are one and half inches wide.
- It is located just behind the nasal passages and above the soft palate, which is the soft portion of the roof of the mouth.
- A uncommon kind of cancer that affects the portion of the throat that connects the back of the nose to the back of the mouth is called nasopharyngeal carcinoma (the pharynx).
- Each year, 260 persons in the UK are given a nasopharyngeal cancer diagnosis.
- Nasopharynx's primary job is to join the remainder of your respiratory system to your nasal passageways.
- As a result, air can pass easily from your nose to your lungs.
- Nasopharynx is also beneficial: Maintain proper pressure between your middle ear and nasopharynx.
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Dissolved oxygen refers to the oxygen present in water which is necessary for many forms of aquatic life. Any change in the amount of dissolved oxygen affects the aquatic life.
Fishes, invertebrates and the aquatic plants need dissolved oxygen for respiration. Microbes like bacteria and fungi also require it for the breakdown of organic matter. A decrease in dissolved oxygen affects the growth, reproduction of fishes and mortality of fishes rises. This results in the accumulation of dead fishes called the fish kill leading to water pollution. Decrease in dissolved oxygen also affects the growth of other aquatic forms and results in the accumulation of organic material in the water body. This is because it results in increased BOD (biochemical oxygen demand) which is the amount of oxygen required by the aerobic microorganisms to breakdown the organic matter.
Answer:
2) -b
3)-c
4)-c
Explanation:
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Answer: The answer to the question is D
Explanation:
The skeletal systems composed of the bones and network of tendors, ligaments and cartilages that connects and fasten the bones together. The skeletal systems are grouped or divided into two, namely the Axial and the appendicular, The system provides the stroctural supports for the human body and also safe guard the various organ fron damage. The system serves other vital functions.