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Drupady [299]
3 years ago
15

Select the CORRECT statement about the pharynx.

Biology
1 answer:
Natalka [10]3 years ago
8 0

Answer:

D. The auditory tube drains into the nasopharynx.

Explanation:

The auditory tubes, commonly known as eustachian tubes have their pharyngeal openings in the lateral wall of the nasopharynx. Auditory tubes also prevent the mucus to enter the middle ear by channelizing it into the nasopharynx. This clearance of mucus does not allow any infection to spread to the middle ear.

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Vladimir79 [104]

Answer:

The answer is the second one so B.)

Explanation:

3 0
3 years ago
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Please help me name each letter and match it to the definition.
lukranit [14]

Answer:

1. B. Medulla oblongata contains cardiac, respiratory, vasomotor and reflex centers.

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5 0
3 years ago
Hawks and foxes eat field mice. this is a form of​
sasho [114]

your answer should be “interspecific competition”

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4 0
3 years ago
In a high school laboratory, which of the following constitutes an experiment? I. learning to use a microscope by examining fixe
victus00 [196]

Answer:

The correct answer is - option III.

Explanation:

An experiment is scientific procedure to test a hypothesis and to demonstrate any scientific procedure to prove something. In high school laboratories there are experiments constitutes scientific methods that helps in demonstrate or prove or existence of something.

Extracting various pigments from the leaves of plants and identifying them by separating from it, is the best example of the high school laboratory experiment among all the options.

Thus, the correct answer is - option III.

7 0
3 years ago
How many valence electrons does carbon have? Is this atom satisfied? Explain.
vitfil [10]

Answer:

4 valence electrons

Explanation:

Because of the relative stability, these atoms often form covalent bonds rather than ionic bonds that need a charge. One example is Carbon. It has 4 valence electrons, so it can make a 4+ or a 4- charge.

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