Question

FIRST ANSWER WILL BE MARKED AS BRAINLIEST.
select the correct statement about the alveoli of the lungs
A) only a few blood vessels surround their wall
B) oxygen passes from the air into the blood
C) their wall is thick
D) carbon dioxide passes from feom the air into the blood
E) they are formed by branching of bronchioles​

Answer 1

Answer:

A

Explanation:

ʜᴏᴘᴇ ɪᴛ ʜᴇʟᴘꜱ ʏᴏᴜ ᴍᴀʀᴋ ᴍᴇ ᴀꜱ ʙʀᴀɪɴʟɪᴇꜱᴛ ꜰᴏʀ ᴍᴏʀᴇ ᴀɴꜱᴡᴇʀꜱ ꜰᴏʟʟᴏᴡ ᴍᴇ

Answer 2

Answer:

Answer is B

Explanation:

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