Question

10
Fill in the blankes by using the suitable words given in bracket
1)__________respiration takes place in the presence of one
(Aerobic / anaerobic)
2)The trachea branches into two thinner tubes called_______( alveoli / bronchi)
3)During exhalation, the ribs move ________( upward / downward)
4)The respiratory pigment in humans is ________( blood / hemoglobin)
5)The normal breathing rate of an adult human being is______ times in a minute ( 20-25 / 15 - 18 )​

Answer 1

Answer:

check in guide book may be miljayaga

Answer 2

Answer:

1) Aerobic

2) bronchi

3) downward

4) hemoglobin

5) 15-18

Explanation: