Answer: S phase or the third phase
Explanation:
The answer is Natural Selection
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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Answer: they all have the same number of valence electrons. they all have umpaired electrons in their valence shells. They are elements produced only in living cells.
Each element exists in only one isotopic form.