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Dovator [93]
3 years ago
12

What are the main points of Oparins’s theory of Origin of life? Make a five

Biology
1 answer:
s344n2d4d5 [400]3 years ago
5 0
This is the answer

I have to have 20 characters so...

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A bacterial culture is being tested for its ability to reduce nitrate. After incubation and growth of the bacteria in nitrate br
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Answer:

All this combination of reactions is summarized in that the bacteria reduced nitrate, that is, they added protons to said compound, giving nitrite as a product.

By promoting the appearance of nitrite and that it increases in its concentrations when the zinc dust is thrown away, it becomes reddish since there was a change in pH, that is, the medium was acidified.

Explanation:

Some bacteria take nitrate as a source and end up generating an oxide reduction reaction that gives nitrite as a product, if this reaction advances in a chain, that is, the nitrite is reduced after the nitrate, the product in the future would be ammonia

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A stomach is made up of multiple tissues. What level of organization is a stomach?
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I think the answer you are looking for is that the stomach is the fourth level of organization. 
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Which of the following structures is found in both eukaryotic and prokaryotic cells?
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C can be taken out of the question as eukaryotic cells do not have a nucleus. A lysosome is is only in prokaryotic cells so B can be taken out of the question. The answer should be D.
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3 years ago
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A scientist is comparing the outer structure of an onion cell, structure X, to the outer structure of a human skin cell, structu
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Structure X is only found in plant cells, and structure Y is found in plant and animal cells.
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What type of white blood cell it is not produced in the bone marrow?
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All white blood cells are produced and derived from multipotent cells in the bone marrow known as hematopoietic stem cells. Leukocytes are found throughout the body, including the blood and lymphatic system.

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