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.
How do scientists know how to put dinosaurskeleton together? 92019-09 2 How do brown bears stay asleep during hibernation? 162019-09 3 How do Jellyfish sting? 202019-09 4 Amphibians 292019-08 5 Changing seasons 152019-08 6 Weather where you live 102019-08 7 Enjoying the weather 162019-08...
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? The low metabolism rate is vital for the pregnant females to conserve energy. Polar bears do not go into deep hibernation and few researchers use the term’ dormancy’ to explain the dormant state. During hibernation, the body temperature of polar bears fairly drops fr...
Each fall, Katmai National Park holds a competition as Alaska’s brown bears finish fattening up for their long winter hibernation. This year, Mashable is getting in on the salmon-munching action. Check back with us all week as we follow the fat bear face-offs each day, and remember to ...
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...
Many animals hide and sleep during the winter. Their body temperature drops and hearts beat more slowly. This helps them to save their energy. They do not eat. They live off their fat. They wake up when the weather gets warmer. 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...
winter don't let sleep stop them from giving birth.Pregnant bears in the wildhave been recorded doing exactly that, with their heart rates increasing throughout the pregnancy and spiking during birth. After the cubs are born, the mama bear's heart returns to normal, and the hibernation ...
DID YOU KNOW?: The Beer Can Regatta was established in 1975, after the thousands of workmen flocking to Darwin to rebuild in the wake of Cyclone Tracy caused a bit of a litter problem. Being ever the pragmatists, a local Territorian established the regatta as a fun way to clean up the...