Question

Fill in the blanks.
a.
Exchange of gas happens through__________
b.
_______ is a large elastic muscular bag-like organ just under our navel or
belly button.
C.
The trachea is also known as the_________.
d.
When diaphragm expands, it_______
lungs up and air_________
lungs.
e.
______ is the process of eliminating toxic wastes such as urea and extra
water from the body
please fill in the blanks​

Answer 1

Answer:

a.in lungs....it happens between alveoli and blood

b.I think the answer is..stomach or large intestine

c.wind pipe

d.sry..I didnt understood the question..

e.excretion...or excretory system..