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Living things are primarily composed of lighter elements like carbon, hydrogen, oxygen, and nitrogen because these elements form stable and diverse molecular structures essential for biological processes. Heavier elements like uranium and plutonium are radioactive and unstable, making them unsuitable for the complex chemical reactions and stability required for life. Additionally, the properties of lighter elements allow for the formation of the organic molecules necessary for life's functions, while heavier elements do not possess the same versatility.

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4mo ago

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What element is not found in most organic compounds?

Uranium. Also fluorine, lead, any of the noble gases, all the lanthanides, gold, silver, copper...


What 4 elements make up a living person?

The four elements that make up a living person are oxygen, carbon, hydrogen, and nitrogen. These elements are essential for building and maintaining the biochemistry of living organisms.


Are the 4 elements found in a living thing unique to living things?

No, the four elements commonly found in living things (carbon, hydrogen, oxygen, nitrogen) are not unique to living things. These elements are abundant in the universe and can also be found in non-living matter like rocks and gases.


How common is uranium in nature?

The concentration of uranium in living beings is very different. In the human body the mean concentration is 0,000 000 003 % (atomic). Of course workers in the uranium industry and peoples living near uranium plants, mines and regions rich in uranium has a greater concentration of U in the body.


How might elements connect living and non living organisms?

Living organisms can interact with non-living elements through processes like respiration (using oxygen and releasing carbon dioxide), photosynthesis (using sunlight and carbon dioxide to produce energy), and nutrient acquisition (absorbing minerals from soil). Non-living elements like water, minerals, and gases are essential for the survival and growth of living organisms. Additionally, geological processes like weathering and erosion can influence the distribution and availability of elements for both living and non-living systems.