Read the following article and select the best answer. Article: Penguins can taste only sour and salty food, scientists have discovered. A genetic study suggests the flightless birds lost three of the five basic tastes long ago in evolution. Taste is critical for survival in most animals, but may not matter in the penguin, which swallows fish whole, say researchers in China and the US. Many other birds are unable to taste sweet things, but they do have receptors for detecting bitter and umami (or meaty) flavours. The discovery was made when researchers decoding penguin genomes found some of the taste genes were missing. A closer look at the DNA of penguins revealed that all species lack functioning genes for the receptors of sweet, umami, and bitter tastes. "Based on genetic data, penguins are believed to have sour and salty tastes, but have lost sweet, umami, and bitter tastes," lead researcher Prof Jianzhi Zhang, of the University of Michigan, US, and Wuhan University, China, told the reporter. The umami taste gives food the strong, savoury flavour associated with meat. Lacking this sense is surprising for a carnivorous animal, but does not matter that much in the penguin, which swallows fish without chewing. "Their behaviour of swallowing food whole, and their tongue structure and function, suggest that penguins need no taste perception," said Prof Zhang. "Although it is unclear whether these traits are a cause or a consequence of their major taste loss." The findings, published in Current Biology journal, were a puzzle, he added. One clue comes from the bird's evolution on the frozen ice sheets of Antarctica. Sending signals from sweet, umami, and bitter (but not sour or salty) taste receptors to the brain does not work at very low temperatures. This may have led to the penguin gradually losing its sense of taste, say the researchers. Intriguingly , the sweet taste is missing in almost all birds. The hummingbird, which feeds on sweet nectar, is an exception. Question: What was the discovery made by the researchers when decoding penguin genomes? - Some of the taste genes were missing. - Penguins are believed to have sweet and salty tastes. - The bird's evolution on the frozen ice sheets of Antarctica. - Taste is critical for survival in most animals.
Some of the taste genes were missing.

Read the following article and select the best answer. Article: When I walk through the streets, I pass strange rooms where people are doing strange things. Some are biking madly. Others are holding metal bars to keep them from dropping down. Still others are jumping around while someone is shouting at them. It looks like something out of Dante's Inferno (<<>> <<>> ). But what is the most amazing is that people pay for these sufferings! The strange rooms are gyms. It is reported that some 41 million Americans are gym members. 12% of the memberships are born in January, as they are determined to knock off the holiday fat. Maybe it is good to exercise in the gym. However, should they know they can keep in good shape, spending little money, would they still agree with its necessity? At the age of 23, I joined a gym. I lifted weights twice a week in Muscle's Gym. I paid as little as $200 per year. You can't find such gyms in every city any more. Too often, the gym is fancy with lots of equipment. If you ask how much it costs to join it, the person at the front desk often won't tell you straight. Instead, he'll let you meet with a fitness consultant , who will provide you with a great number of reasons and suggestions, such as losing weight and getting healthier, just in order to put pressure on you to spend much money joining the gym and becoming a member there. Working out with the help of equipment at home has problems, too. In the early 2000's, I bought a spinning bike at a cost of $700 for home use. I tried a few times only to find that it brought me a neck problem. Now I'm back to my old way. I do Yoga every morning and evening. Total cost: $60 for an exercise mat . I'm enjoying fitness. Question: The strange rooms are places where people _ . - do strange things - suffer from great pains - play Dante's Inferno - take physical exercise
take physical exercise

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Read the following article and select the best answer. Article: Sunshine Sports Center One of the most modern sports centers in town, the Sunshine Sports Center is not just a sports club but much more! With a swimming pool for adults and teens, and a smaller one for children, our center has something for all the members of the family.Parents can relax while children play in the water.For anybody who is interested in competitive sports, football and basketball courts are the ideal places to work off stress. Whether you just want to keep in shape, lose some weight or build your strength, there's the super-modern equipment and three personal trainers to look after you and answer your questions.They can also give you general advice about healthy eating and dieting. Lessons It doesn't matter if you're five or eighty-five, there's something for you at the Sunshine Sports Center! We offer personal training in all sports if you want it, but there are also group lessons for all sports if you prefer teamwork. Kids and teenagers Take advantage of our special offer for younger members.For members between five and sixteen years old, there are special lessons in water polo, competitive swimming and diving.There are many classes for all levels of swimmers, with a lifeguard on duty from 9:00 am when the pool opens until it closes at 7:00 pm. Social events Sunshine Sports Center is not only for sport! You can enjoy a delicious meal at our restaurant or have a milkshake with your friends on the balcony overlooking the swimming pool and the courts.In addition, there are lovely gardens where families or friends can have a picnic! To celebrate a birthday, there is no better place than the Sunshine Sports Center. So, come on Sign up for Sunshine Sports Center today! Question: In Sunshine Sports Center _ . - children are not allowed to swim alone - lifeguards are on duty 24 hours a day - people can have birthday parties - special lessons in diving are offered to adults
**Answer**
people can have birthday parties