Question

1.
During inhalation ,diaphragm and rib muscles


(a) relaxes and contract respectively
(b) both relax
(c) contracts and relax respectively
(d) both contract
2. Which of the following is not associated with
respiration?
(a) lungs
(b) pharynx
(c) gills
(d) tracheae
3. Exhaled air contains more
(a) oxygen
(b) carbon dioxide
(c) nitrogen (d) none of these
4. Breathing rate per minute in humans under
normal conditions is
(a) 16-18 times
C.
(b) 20-25 times
(c) 30-32 times (d) 18-20 times
5. Which of the following respires only
anaerobically
(a) cockroach
(d) all bacteria
6. Exchange of gases in lungs between air and
(b) yeast
(c) fungi
Blood is called
(a) respiration
(b) transpiration
(c) external respiration
(d) internal respiration
Q000​

Answer 1

Answer:

Explanation:

1)a

2)d

3)b

4)a

5)d

Answer 2

Answer:

1)a

2)d

3)b

4)a

5)d

Explanation:

I hope this is the answer