Problem: I read this background article the other day: Once again, a mutation is the change in the DNA or RNA sequence. In multicellular organisms, mutations can be subdivided into germline mutations and somatic mutations. Germline mutations occur in the DNA of sex cells, or gametes, and are therefore potentially very serious. These mutations can be passed to the next generation. If the zygote contains the mutation, every cell in the resulting organism will have that mutation. If the mutation results in a disease phenotype, the mutation causes what is called a hereditary disease. Somatic mutations , which occur in somatic, or body, cells, cannot be passed to the next generation (offspring). Mutations present in a somatic cell of an organism will be present (by DNA replication and mitosis) in all descendants of that cell. If the mutation is present in a gene that is not used in that cell type, the mutation may have no effect. On the other hand, the mutation may lead to a serious medical condition such as cancer. I am facing a new situation today: The specialists studied two groups of larvae. Group L displayed all kinds of mutations while group D didn't. Using the knowledge I acquired from the background article, how should I answer correctly the following question regarding my new situation: Which group of larvae had fewer germline mutations?

A: group D
Problem: Given the question: I read this background article the other day: When wind waves approach to coast area from deep water, the waves change their heights and lengths. The wave height becomes higher and the wavelength becomes shorter as the wave velocity is slowed when ocean waves approach to the shore. If the water depth is sufficiently shallow, the wave crest become steeper and the trough gets broader and shallower; finally, the ocean waves break at the shore. The motions of wave breaking are different with along to the steepness of shores and waves, and can be categorized by below three types.[11][12] I am facing a new situation today: The tourist village had two beaches: Coral beach with nice sand and deeper water was preferred by families, and Surfer beach which had shallow water was a surfer's heaven. Using the knowledge I acquired from the background article, how should I answer correctly the following question regarding my new situation: Which beach had waves with a broad and shallow trough?
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The answer is:
Surfer beach
input question: I read this background article the other day: Allergy symptoms can range from mild to severe. Mild symptoms might include itchy eyes, sneezing, and a runny nose. Severe symptoms can cause difficulty breathing, which may be life threatening. Keep in mind that it is the immune system and not the allergen that causes the allergy symptoms. Allergy symptoms can be treated with medications such as antihistamines. Severe allergic reactions may require an injection of the hormone epinephrine. These treatments lessen or counter the immune system's response. I am facing a new situation today: The doctors used used the newly discovered allergy medicine on two groups of people. As a result, group Alpha experienced mild allergy symptoms, while group Beta continued experiencing severe allergy symptoms and remained hospitalized. Using the knowledge I acquired from the background article, how should I answer correctly the following question regarding my new situation: Which group experienced difficulty breathing????
output answer: group Beta
I read this background article the other day: Because of human activities, there is more carbon dioxide in the atmosphere today than in the past hundreds of thousands of years. Burning fossil fuels and has released great quantities of carbon dioxide into the atmosphere. Cutting forests and clearing land has also increased carbon dioxide into the atmosphere because these activities reduce the number of autotrophic organisms that use up carbon dioxide in photosynthesis. In addition, clearing often involves burning, which releases carbon dioxide that was previously stored in autotrophs. I am facing a new situation today: When comparing village A from ten thousand years ago to village B from today, we reached the conclusion that today's villagers release much more carbon into the atmosphere by their activities. Using the knowledge I acquired from the background article, how should I answer correctly the following question regarding my new situation: Which village cut more forests?
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Answer: village B
Q: I read this background article the other day: Allergy symptoms can range from mild to severe. Mild symptoms might include itchy eyes, sneezing, and a runny nose. Severe symptoms can cause difficulty breathing, which may be life threatening. Keep in mind that it is the immune system and not the allergen that causes the allergy symptoms. Allergy symptoms can be treated with medications such as antihistamines. Severe allergic reactions may require an injection of the hormone epinephrine. These treatments lessen or counter the immune system's response. I am facing a new situation today: Robert studied two groups of patients. Group O had mild allergy symptoms, while group R displayed severe allergy symptoms. Using the knowledge I acquired from the background article, how should I answer correctly the following question regarding my new situation: Which group may not require an injection of the hormone epinephrine?
A: Group O
[Q]: I read this background article the other day: Each radioactive isotope has a characteristic decay time periodthe half-lifethat is determined by the amount of time needed for half of a sample to decay. This is an exponential decay process that steadily decreases the proportion of the remaining isotope by 50% every half-life. Hence after two half-lives have passed only 25% of the isotope is present, and so forth. I am facing a new situation today: David was working in his chemistry lab. He selected two isotopes, sample A and sample B. Sample A had longer half-life, but sample B had shorter half-life. After some time he checked sample A when its one half-life had passed. He noted it as sample A1. Then he came back to see it again when two half-lives had passed. He noted it as sample A2. Using the knowledge I acquired from the background article, how should I answer correctly the following question regarding my new situation: Would sample A2 have less or more isotopes than sample A1?
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[A]:
less