Q: What water is about 3.5% salt? Read this paragraph and choose the correct option from the provided answers: You know that ocean water is salty. How salty is it? What is the salinity of seawater? Average seawater is about 3.5% salt. The amount is different if there is a nearby source of freshwater. It is also different if there is a lot of evaporation in an area. How do you think these things affect seawater salinity? Seawater also contains other substances like sugars, acids, bases, and organic molecules. Choices: - glacial water - fresh water - spring water - seawater A:
seawater
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Q: The intensity or rate of radiation emission _________ with temperature? Read this paragraph and choose the correct option from the provided answers: Figure 29.3 Graphs of blackbody radiation (from an ideal radiator) at three different radiator temperatures. The intensity or rate of radiation emission increases dramatically with temperature, and the peak of the spectrum shifts toward the visible and ultraviolet parts of the spectrum. The shape of the spectrum cannot be described with classical physics. Choices: - randomly fluctuates - decreases - does not vary - increases A:
increases
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Q: Where is glucose carried in the human body? Read this paragraph and choose the correct option from the provided answers: Chemical energy that organisms need comes from food. The nearly universal food for life is the sugar glucose. Glucose is a simple carbohydrate with the chemical formula C 6 H 12 O 6 . The glucose molecule stores chemical energy in a concentrated, stable form. In your body, glucose is the form of energy that is carried in your blood and taken up by each of your trillions of cells. Choices: - the liver - the brain - the heart - the blood A:
the blood
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Q: Cancer develops when what process is unregulated? Read this paragraph and choose the correct option from the provided answers: In the Cell Cycle: Cancer (Advanced) concept, cancer is described as developing due to unregulated cell division. That is, cancer is a disease characterized by a population of cells that grow and divide without respect to normal limits. These cancerous cells invade and destroy adjacent tissues, and they may spread throughout the body. The process by which normal cells are transformed into cancer cells is known as carcinogenesis . This process is also known as oncogenesis or tumorigenesis. Oncogenes are mutated genes involved in the development of cancer. Choices: - metabolism - meiosis - cellular respiration - cell division A:
cell division
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