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olga2289 [7]
3 years ago
9

WILL GIVE LOTS OF POINTS AND BRAINILIST PLEASE HELP

Biology
2 answers:
bekas [8.4K]3 years ago
6 0
Cyanobacteria which is a type of algae. It conducts photosynthesis and without it there may not have been life today because they didn't need oxygen to survive and in order to have oxygen there had to have been some form of life...
cupoosta [38]3 years ago
3 0
Bacteria is the organism that scientists believe was responsible for changing the composition of the early atmosphere. It changed the atmosphere by using energy from the Sun for photosynthesis, and released oxygen as a byproduct. The change on the atmosphere was so important because it added more oxygen to our atmosphere, which brings us to our current atmosphere composition of 21% oxygen and 78% nitrogen.

Hope this helps!
Please give brainliest:)
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What step of the scientific method explains why the results turned out the way it did
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Conclusion is the step of the scientific method explains why the results turned out the way it did.

<h3>What are the steps of scientific method?</h3>

There are seven steps of the scientific method which are the following:

1. Ask a question: The first step in the scientific method is asking a question that you want to answer.

2. Perform a research about the given topic.

3. Make your hypothesis. Hypothesis is a statement which may be true or false.

4. Test your hypothesis by conducting an experiment or a series of experiments.

5. Make an observation.

6. Do analysis about the results and draw a conclusion on the basis of given data.

7. Present the findings to the world.

So we can conclude that Conclusion is the step of the scientific method explains why the results turned out the way it did.

Learn more about scientific method here: brainly.com/question/17216882

#SPJ1

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