Biology

Biology, 30.07.2019 05:00, bigchow

Why are carbon and nitrogen essential for survival to all living organisms?

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Biology, 25.07.2019 10:00, hinacat87

Carbon atoms are the basis for all life on earth. carbon atoms are found in all the molecules that make up living organisms—carbohydrates, lipids, proteins, and nucleic acids. why is carbon important in the earth’s ecosystems? a. carbon originates in sunlight. b. carbon is produced in the nitrogen cycle. c. carbon atoms are found in molecules of all living organisms. d. carbon atoms are found only in nonliving matter.

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Biology, 26.07.2019 02:00, Maryllen

Carbon atoms are the basis for all life on earth. carbon atoms are found in all the molecules that make up living organisms—carbohydrates, lipids, proteins, and nucleic acids. why is carbon important in the earth’s ecosystems? a. carbon originates in sunlight. b. carbon is produced in the nitrogen cycle. c. carbon atoms are found in molecules of all living organisms. d. carbon atoms are found only in nonliving matter.

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Biology, 01.08.2019 19:30, britt0412

How does fossilized carbon get back into the atmosphere? (2 poic) living organisms need nitrogen to build proteins and nucleic acids, but nitrogen cannot be used by plants in its gaseous state. how does a plant get the nitrogen from the soil? name one of the nitrogen compounds produced in the process?

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Biology, 04.09.2019 02:30, katherineweightman

Which of the following four statements, if any, is true regarding essential elements and living organisms? 1. the elements carbon, hydrogen, nitrogen, and oxygen make up 20-25% of living mass. 2. given their low concentrations in nature, the toxicity of some elements is generally not a factor in the evolution of biological communities. 3. although all forms of life require iron, other elements are required only by certain species. 4. all organisms require 25 of the 92 naturally occurring elements to survive. 5. all of the listed responses are correct.

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