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Zarrin [17]
3 years ago
14

Which structure is the initial entry way for air to enter the respiratory system?

Biology
1 answer:
Alexxx [7]3 years ago
6 0
It is the nose I think.
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2. What does polar mean?
irina1246 [14]

Hello!

<h3>⭐What does polar mean? </h3>

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  • D. An unequal sharing of electrons

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<em><u>Chemical polarity or only polar is a property of molecules that represents the separation of electric charges in the same molecule (see also electric dipole). ...</u></em>

I hope I have helped you :D

greetings

atte:

<u>Angela</u>

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