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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Answer:
The paragraph illustrated in the question reminds me the first law of thermodynamics.
Explanation:
According to the first law of thermodynamics or law of energy conservation theory states that the total amount of energy of the universe always remains constant.Energy can neither be synthesized nor destroyed.Energy can only be transformed.
Both photosynthesis and cellular respiration obey the law of energy conservation or the first law of thermodynamics.Because during photosynthesis the light energy is converted to chemical energy that is stored in the chemical bonds present in glucose.
Whereas during cellular respiration the glucose is broken down by oxidation to release free energy in form of ATP.
Answer: Like fats, they are typically composed of fatty acid chains attached to a backbone of glycerol. Instead having three fatty acid tails, however, phospholipids generally have just two, and the third carbon of the glycerol backbone is occupied by a modified phosphate group.
