Question

which of the following statements are true about respiration
1. during inhalation, removes in word and diaphragm move upwords
2. in the alveoli, exchange of gases take place, that is oxygen from alveolar air moves into the blood.
3. haemoglobin has greater affinity e for carbon dioxide than oxygen.
4. alveoli increase the surface area for the exchange of gases.
a) 1 and 2
b) 2 and 3
c)1 and 3
d) 2 and 4​

Answer 1

Answer:

1 and2

Explanation:

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