Question

What happen to all the animals at the end?​

Answer 1

Answer:

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Explanation:

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Answer 2

Answer:

Transportation in Animals and Plants - NCERT Class 7 Science. ... You have learnt earlier that all organisms need food, water and oxygen for survival. They need to ... What will happen if the blood rich in oxygen and the blood rich in carbon dioxide mix with each other? ... Put the open end of the tube on one of your ears.