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ki77a [65]
3 years ago
6

Which of the following contributions to the theory of the conservation of energy is an observation of a biological system?

Biology
1 answer:
torisob [31]3 years ago
6 0
The second one should be the answer not 100% but like 85% sure
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<h3>Why use an X-ray?</h3>

A chest x-ray of the patient will be the most secure way of confirming the placement of an endotracheal tube within the trachea given that it allows the professionals in question to see its exact placement. This ensures that the placement is correct and that the patient will not have respiratory issues.

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