Through the blood flow and veins in your body
The Importance of Freshwater Ecosystems. Water ecosystems, specifically freshwater ecosystems, are some of the most important resources in the replenishment and purification of water sources used by humans. ... One of the main functions of wetlands is to remove metals and sediments that make their way into water.
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Through photosynthesis, certain organisms convert solar energy (sunlight) into chemical energy, which is then used to build carbohydrate molecules. The energy used to hold these molecules together is released when an organism breaks down food. Cells then use this energy to perform work, such as cellular respiration.
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B. Not all nonvascular plant bear seeds, but all vascular plants do bear seeds.
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Matution include changes as small as the substitution of a single DNA building block, nucleotide base, with another nucleotide base.... Other matutions result in abnormal protein product.
