A population is the population in a community
A community contains a population
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The biogeochemical cycle that includes the process of buffering ocean pH and photosynthesis is the carbon cycle.
The biogeochemical cycles show the movement of matter in nature. These cycle show us that indeed matter is neither created nor destroyed but is always changed from one form to another.
The carbon cycle shows the movement of carbon in nature. An important component of the carbon cycle are the sinks of carbon. There are two important sinks of carbon dioxide in the carbon cycle which are oceans and green plants.
Green plants require carbon dioxide for photosynthesis while carbon dioxide is absorbed in the oceans as bicarbonate and carbonate ions where it helps to buffer ocean pH.
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For the first half of your question, plants do need to eat. In fact, they are autotrophs, which means they are self feeders.
Acids break down the sandwich and it goes into the intestines and the enzymes and bacteria break it down more then it is absorbed into the intestines through the body.
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to take precise measurements and do experiments
