Biology, asked by MUSABHUSSAIN, 6 months ago

Q.22 In humans, the epithelium which separates air and blood is only:

A)I cell thick

B) 3 cells thick

C) 2 cells thick

D) 4 cells thick​

Answers

Answered by Manaswini17
1

2 cells thick(c)........

Answered by nabeelrustam04
0

Answer:

2 cells thick

Explanation:

Because the respiratory surface is very thin in humans and it consists of single layered alveoli and single layered blood capillaries so it is 2 cells thick

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