Answer:
c let me know if i am wrong
Explanation:
The total volume of the gas-exchanging region in the lung is called alveolar volume.
The alveolus is an air sack-like organ in the end of the respiratory airway. The alveolus is the site where gas-exchanging happens, so only air inside alveolus that will undergo actual exchange. Air in bronchus or trachea wouldn't do exchange
Rbc dont have a nucleus to pack more haemoglobin. it also has a biconcave shape to increase surface area.... idk about the other two. sorry
Answer: 18°24'
cos
Explanation:
Use equation for cos α=b/c
b=32
c=40
cosα=32/40
cosα=4/5
csc=71.62°
α=71.62°
90°+α+β=180°
β=180-α-90
β=180-71,62-90
β=18.4°
β= 18°24'
Answer:
C
follicle-stimulating hormone is a large glycoprotein
