What is a major difference between prokaryotes and eukaryotes? A) Prokaryotes have no nucleus.
B) All prokaryotes cause disease.
C) Eukaryotes contain more mitochondria.
D) Nucleic acids are founds only in eukaryotes.
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4.) metal

"-the movement of carbon from the nonliving environment into living things and back to the environment

-carbon is the essential component of proteins, fats, and carbohydrates (which make up all organisms)

-carbon exists in air, water, and living organisms

-producers convert carbon dioxide in the atmosphere into carbohydrates during photosynthesis

-bacteria in the atmosphere cycles through the system in filtration units

-in cellular respiration, carbon is released back into the atmosphere as carbon dioxide

-some carbon is stored in limestone (forming one of the largest "carbon sinks" on earth)

-largest carbon reservoir on earth= limestone

-carbon stored in the bodies of organisms as fat, oils, or other molecules may be released into the soil or air when the organism dies

-this may form deposits of coal, oil, or natural gas (fossil fuels, which increased the atmospheric carbon dioxide)

-fossil fuels store carbon left over from bodies of organisms that died millions of years ago

-they are located in the surface of earth, deep within the earth and beneath the ocean floor."    

the animal that would be cutest if scaled down to the size of a cat? elephant

your body is trying to warm itself up. or more precisely, sensors in your skin send messages to your brain to generate heat to your body.