Question

B. FILL IN THE BLANKS
to perform life processes.
1. All living organisms................. to perform life processes
2. External respiration is also known as.............
3. Trachea divides into two...............
4. Carbon dioxide turns lime water......................
5. During.................
the muscles present in between the ribs move the ribs upwards
and outwards, while the diaphragm pushes down and becomes flat.​

Answer 1

Answer:

1. need

2.breathing

3.bronchioles

4.milky

5.exhalation