Mario sets up an experiment to determine the source of the oxygen gas produced by photosynthesis. To determine this, he uses an isotope of oxygen called O-18. He labels the O-18 oxygen so he can follow its path through photosynthesis. Plant A is given carbon dioxide that contains the O-18 isotope. Plant B is given water that contains the O-18 isotope. When he examines the oxygen from both plants, only plant B produced O-18 oxygen. This indicates that the source of oxygen is water. The photosynthesis involves the transfer of electrons between the photosystem I and II. The water gets split into oxygen, hydrogen ions and electrons in the photosystem I. The electrons move to the photosystem II where the carbon fixation into sugars takes place. The plant A will have O-18 isotope in its synthesised sugar molecule, which gets stored inside it.
Solid. it's all stuck and linked together, while liquids are flowing along and gases fly around wherever they please. Hope this helps
Chromosomes are the homologous chromosomes that cross over
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Letting go of regrets and past decision.
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Answer:
the brain helps with moving our limbs and bones such as how im typing this, it helps us remember to blink and breathe and keep our heart pumping blood.
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im not actually sure if this is right but i tried, im sorry if its wrong
