What are the bubbles that the elodea released made of? what conclusions can you draw about the relationship between light intensity and the rate of photosynthesis? be sure to refer to your data and justify your response. what is another way that the intensity of the light could be tested? describe your procedure. look at the photosynthesis reaction 6h2o + 6co2 -➔ c6h12o6 + 6o2. what do you think might be other factors that can affect the rate of this reaction? make a hypothesis about your answer to question 4. design an experiment to test your hypothesis in question 5

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."    

b.

a- all cells come from pre-existing cells

meiosis is the correct answer