Question

1. Draw labelled diagram of Human Alimentry canel. Explain why is it necessary to separate oxygeneted

and deoxygeneted blood in mammals and birds?​

Answer 1

Answer:

if the Oxygenated blood is and deoxygenated blood is mixed the more amout Of co2 will be in the body than O2

Explanation:

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Answer 2

It is necessary to separate oxygenated and deoxygenated blood because of blood is not speared a lot of energy From the body will be wasted to separate the blood. This energy wasted in separating blood can be utilised for many other purposes.
Thus it is necessary to separate oxygenated and deoxygenated blood.