Why do bears use less energy during hibernation? (列举一个原因即可 ) 相关知识点: 试题来源: 解析 Because their hearts slow down/Because their breathing slows down/Because their bodies don' t grow. /Because their body temperature drops.
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Bears usually sleep in winter. What do we call this kind of sleep? A. hibernation B. siesta C. nap D. rest 相关知识点: 试题来源: 解析 A。解析:熊在冬天通常会冬眠,hibernation 是冬眠的意思;siesta 是午睡;nap 是小睡;rest 是休息。
Do polar bears hibernate? Not exactly, as true hibernators do not experience an obvious drop in their heartbeat and body temperature. Polar bears undergo a deep state of walking hibernation during which themetabolismslows down. One of the distinctive traits of polar bears is that only the pregn...
"There's a lot of damage that incurs during hibernation," he said, noting that it then takes an animal considerable energy to restore a body's imbalances.Even so, bears are resilient, and apparently equipped to deal with these challenges. It's a remarkable survival technique, and in many ...
Do bears sleep in hibernation? However, not many animals truly hibernate, and bears are among those that do not.Bears enter a lighter state of sleep called torpor. ... During hibernation an animal lowers its body temperature, slows its breathing rate, heart rate, and metabolic rate-the rate...
Hibernation is an energy-saving adaptation against harsh weather conditions. This strategy is adopted by endotherms, since they have to regulate their own body temperatures. During a hibernation period, the metabolism of the animal is very low, allowing them to conserve energy and survive. Their ...
Another good way to avoid the cold is to sleep through it.Many animals hide during the winter.Their bodies slow down.They save their energy (精力).They do not eat.They depend on their fat (脂肪).They do this until food returns.We call this hibernation (冬眠).Sna...
What do bears, bats and frogs have in common? They all hibernate. Hibernation is a state often compared to sleep. It usually occurs in winter, when a creature does not move for weeks or months continuously. Creatures hibernate to survive the cold weather and the absence of food. A typical...
Some other animals sleep for a long time in winter. They are in hibernation (冬眠) 【小题5】 In winter they eat nothing. They're very hungry when they wake up in spring. They usually look for food in March or April. Bears, snakes and frogs are such animals. Winte...