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oksian1 [2.3K]
3 years ago
12

What was the time frame?

Biology
1 answer:
Andrew [12]3 years ago
3 0

Answer:

4.6 to 4 Billion Years Ago

Explanation:

According to the researchs and studies, the earth formed about 4.54 billion years ago and the oldest known living organism date to around 3-3.5 billion years ago which are the first bacteria that formed in the water.

I hope this answer helps.

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After Darwin proposed his ideas about natural selection, scientists began trying to test his ideas in a variety of ways. Which o
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Importance of enviroment
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hope it's helps you and plz mark me brilliantest

Explanation:

environment plays an important role in the healthy living of human beings. it matters because it is the only home that humans have ,and it provides air, food and other needs. Humanity's entire life support system depends on the well -being of all the environment factors.

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plz mark me as brainliest :)

5 0
3 years ago
What are the primary methods of confirming endotracheal tube placement within the trachea?.
krek1111 [17]

Given what we know, we can confirm that the primary method of confirming endotracheal tube placement within the trachea is a chest x-ray.

<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.

Therefore, we can confirm that the primary method most often used for confirming endotracheal tube placement within the trachea is a chest x-ray.

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