Answer:
Green, red or orange
Explanation:
Benedict's solution is used to test for simple sugars, such as glucose. It is a clear blue solution of sodium and copper salts. A potion of sugar solution is added an equal amount of benedict's solution and heated to boil. In the presence of simple sugars, the blue solution changes color from blue to green, yellow, and red, depending on the amount of sugar. When the solution turns to orange, it indicates that there is presence of reducing sugars.
Mitosis in the stage prophase chromosome and DNA is copied
Given what we know, we can confirm that the significant increase in oxygen in the Earth's atmosphere 2 to 2.5 billion years ago is due to cyanobacteria.
<h3>What are cyanobacteria?</h3>
These are tiny bacterial organisms. They were amongst the first organisms to use photosynthesis to sustain life. The sudden boom of cyanobacteria accounts for the rapid increase in oxygen given that they will use carbon dioxide to produce sugar through photosynthesis, expelling oxygen in the process.
Therefore, we can confirm that the significant increase in oxygen in the Earth's atmosphere 2 to 2.5 billion years ago is due to cyanobacteria.
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