When it is very cold, bears hibernate. What are bears NOT doing when they hibernate? A. They are sleeping. B. They are eating. C. They are moving. D. They are breathing. 相关知识点: 试题来源: 解析 C。解析:冬眠时,熊在睡觉、呼吸但不会移动和进食。A 选项睡觉是冬眠的主要特征;D 选项...
Bears often hibernate during winter. What triggers this behavior? A. Lack of food. B. Cold weather. C. Fear of predators. D. Boredom. 相关知识点: 试题来源: 解析 A。本题考熊冬眠的触发因素。选项 A,冬季食物缺乏促使熊冬眠;选项 B,寒冷天气不是直接触发因素,食物缺乏更关键;选项 C,害怕捕食...
bears who atea natural diet.Unfortunately,bears that hibernate for shorter periods of time may live shorter thanother bears.This is because they die having shorter telomeres(染色体端粒).As animals get older,theirtelomeres naturally shorten(变短).As the telomeres get shorter,the animals start to ...
What do bears like to eat? You might think that their favourite foods are fish and honey. However, some bears eat leaves(树叶) of animals food that they find in the garbage can. It turns out that this is not very common. The scientists found this in the garbage of Wisconsin's black ...
Some of them hibernated for only four days, while bears that ate a natural diet of quickly bears that hibernate for shorter periods of time had to have a shorter lifespan(寿命) than other bears.This is because they end up having shorter telomeres( 端粒). When the animals get older, ...
Bears are well known for their winter sleep, referred to as torpor. Bears enter a lighter state of dormancy, where their body temperature slightly decreases, and metabolism slows down, but they remain more alert and can awaken more easily. During this period, bears rely on fat reserves accumul...
Bears like to sleep in winter. What do we call this? A. Run. B. Play. C. Hibernate. 相关知识点: 试题来源: 解析 C。解析:熊在冬天喜欢睡觉,这种行为叫冬眠,hibernate 是冬眠的意思。A 选项 run 是跑,B 选项 play 是玩,都不符合熊冬天睡觉的习性。
When they get shorter, animals look older. So, if bears have shorter telomeres at the starn. theyage faster we don't know how shorter telomeres make bears hibernate for shorter times.13. According to the passage. what kind of food do some bears prefer to eat? A. Fish and honey. B. ...
What do bears like to eat? You might think their favorite foods are fish and honey But some bears eat leftover( " ) human food that they find in the trash. However, it 1 out that this is not very good for them Scientists from the University of wisconsin studied wild black bears in ...
When an animal is hibernating, its breathing slows and its body temperature drops. Black bears don’t eat, drink, or go to the bathroom when hibernating, while animals like bats sometimes wake up to find food or move to another place. Although humans don’t hibernate, scientists think we...