Answer the following question given this paragraph: The nucleus contains the genetic material of the cell. Q: What organelle contains the genetic material of the cell? Choices: - gamete - fetus - meiosis - nucleus A:
nucleus
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Answer the following question given this paragraph: Brewers of beer and wine use yeast to add alcohol to beverages. Traditional varieties of yeast not only make but also limit the quantity of alcohol in these beverages, because above 18% by volume, alcohol becomes toxic to the yeast itself. Wine is produced by fermentation of the natural sugars present in grapes and other kinds of fruit. Beer, whiskey, and vodka are produced by fermentation of grain starches that have been converted to sugar by the enzyme amylase, and rum is produced by fermentation of sugarcane. In each of these fermentations, sugars are converted into small amounts of ATP, using and regenerating NAD + in the process, and producing ethanol and carbon dioxide. Scientists have recently developed new strains of yeast which can tolerate up to 25% alcohol by volume. These are used primarily in the production of ethanol fuel. Q: Why do beer brewers add yeast to the wort? Choices: - reduce alcohol - add carbonation - increase longevity - to make alcohol A:
to make alcohol
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Answer the following question given this paragraph: A scientific law is a specific statement that is thought to be never violated by the entire natural universe. Everyday laws are arbitrary limits that society puts on its members. Q: What term describes a specific statement that is thought to be never violated by the entire natural universe? Choices: - evidence - hypothesis - theory - scientific law A:
scientific law
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Answer the following question given this paragraph: Old age begins in the mid-60s and lasts until the end of life. Most people over 65 have retired from work, freeing up their time for hobbies, grandchildren, and other interests. Stamina, strength, reflex time, and the senses all decline during old age, and the number of brain cells decreases as well. The immune system becomes less efficient, increasing the risk of serious illnesses such as cancer and pneumonia. Diseases such as Alzheimer's disease that cause loss of mental function also become more common. Q: When does diseases like alzheimer's become more common? Choices: - toddler - teenager - i-40 age - old age A:
old age
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