B, proton is positive and it does not represent the symbol
The alveoli are lined with mucus and are surrounded by a network of blood capillaries. They have very thin walls for gases to be absorbed through. An individual air sac is called an alveolus. The layer of moisture in the alveoli allows gases to dissolve so that they can diffuse quickly.
Answer:
an allergic reaction to the wasp bite
Explanation:
this happens when a wasp first stings u it's only temporary of course
They might be going through the S Phase of the cell cycle which is DNA replication. Usually, when the cells go through this phase they end up to dividing.
Explanation:
Answer is chest
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