#5 the answer is glucose because it is a simple sugar and plays a role in cellular respiration and photosynthesis
Answer:
Carbon is the chemical backbone of life on Earth. Carbon compounds regulate the Earth’s temperature, make up the food that sustains us, and provide energy that fuels our global economy. Carbon moves from one storage reservoir to another through a variety of mechanisms. For example, in the food chain, plants move carbon from the atmosphere into the biosphere through photosynthesis. They use energy from the sun to chemically combine carbon dioxide with hydrogen and oxygen from water to create sugar molecules. Animals that eat plants digest the sugar molecules to get energy for their bodies. Respiration, excretion, and decomposition release the carbon back into the atmosphere or soil, continuing the cycle. The ocean plays a critical role in carbon storage, as it holds about 50 times more carbon than the atmosphere. Two-way carbon exchange can occur quickly between the ocean’s surface waters and the atmosphere, but carbon may be stored for centuries at the deepest ocean depths. Rocks like limestone and fossil fuels like coal and oil are storage reservoirs that contain carbon from plants and animals that lived millions of years ago. When these organisms died, slow geologic processes trapped their carbon and transformed it into these natural resources. Processes such as erosion release this carbon back into the atmosphere very slowly, while volcanic activity can release it very quickly. Burning fossil fuels in cars or power plants is another way this carbon can be released into the atmospheric reservoir quickly.Human activities have a tremendous impact on the carbon cycle. Burning fossil fuels, changing land use, and using limestone to make concrete all transfer significant quantities of carbon into the atmosphere. As a result, the amount of carbon dioxide in the atmosphere is rapidly rising; it is already considerably greater than at any time in the last 800,000 years. The ocean absorbs much of the carbon dioxide that is released from burning fossil fuels. This extra carbon dioxide is lowering the ocean’s pH, through a process called ocean acidification. Ocean acidification interferes with the ability of marine organisms (including corals, Dungeness crabs, and snails) to build their shells and skeletons.
Since Science is all about experiment and reasoning, ' Which kind of milk tastes the best?' and ' Is it ethical to raise cows to produce milk?' - these two questions cannot be answered through science.
<h3>What Is Science?</h3>
- Science is a methodical endeavor that creates and arranges knowledge in the form of universe-related explanations and predictions that can be put to the test. Some of the earliest archeological evidence for scientific reasoning is tens of thousands of years old, and science may be as old as the human species.
- Society values science because it may be used to better living conditions and meet a wide range of fundamental human needs. Just two current examples include the search for a cancer cure and a clean source of energy.
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The products of semiconservative replication for a double stranded DNA molecule are two double stranded DNA molecules, one side of both strands being the old strands that were separated and used as a template and the other side of both strands being the nucleotides that were placed on the template strand.
