Answer:
The answer is B. Some organic molecules, including amino acids, could have been produced from chemical reactions on early Earth.
Explanation:
Miller-Urey Experiment:
The Miller-Urey experiment was an attempt to explain the origin of life on Earth. Miller-Urey simulated the primordial soup i.e. the environment of primitive Earth to prove the spontaneous generation of organic molecules. The conditions they introduced included:
- A methane-ammonia-hydrogen and water mixture that exactly simulated the primordial soup.
- A spark of 70,000 volts that simulated lightening.
- A temperature of 800 degree Celsius.
Observations:
- After running for 18 days, the final solution was examined for presence of organic molecules.
- Miller-Urey observed that most of the methane and ammonia had been consumed and the mixture contained carbon monoxide and nitrogen.
- The solution further contained 25 amino acids (mainly, glycine, alanine and aspartic acid)
, several fatty acids
, hydroxy acids and amide products.
The experiment concluded that simple organic compounds such as amino acids could have been formed through spontaneous generation under the Earth's primitive environmental conditions.
In cellular respiration, glucose is broken down by reacting it with oxygen to produce carbon dioxide and water.
C6H12O6 + 6O2 -> 6CO2 + 6H2O
In fossil fuels, methane or any other fuel is combusted using oxygen.
CH4 + 2O2 -> CO2 + 2H2O
The combustion of glucose happens in cellular respiration.
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Atomic Theory:</h2><h2>
Introduction</h2>
The atomic theory of Atoms Summed up is the idea that all matter is made of tiny particles that are imperceptible to the mortal eye; these particles are named Atoms
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John Dalton was the first to consider that all matter was made of tiny particles known as atoms. He invented the idea that matter is formed of atoms varying in weight.
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I created this model of the dissimilarities between three kinds of matter-- solids, liquids, and gases. The distance between atoms in each state tells us what type of matter we observe.
The Drawing is on the file
The End.
I hope you found this helpful
Answer:Expression means the process of making known ones thoughts and feelings. This relates to the concept of gene expression by the fact that the genes characteristics are made known through the phenotypes and the characteristics of the gene and it's information becoming known. The process of making things known in gene sequencing and the creation of proteins and its job.
Explanation:
I hope this helps I haven't taken bio in a couple years lol.
<span>Which of the following is NOT an example of a graphic indicator which can help you understand the main purpose of a text?
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<span> D. Page and section numbers
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