Why Do Bears Hibernate? by Darice Bailer (Tell Me Why, Tell Me How series) (eBook)Bailer, Darice
C.research into hibernation in animals may help deadly patients stay longerD.scientists have already take advantage of the different levels of hibernation in space missions.答案68.A 细节理解题,根据第一段Alaskan black bears hibernate for up to seven months a year可知阿拉斯加黑熊...
A) Bears hibernate during winter, butaren't sleeping the whole time. Hibernation for bears simply means they don't need to eat or drink, and rarely urinate or defecate (or not at all). ... In the colder, northern parts of Alaska, bears hibernate about 7 months of the year. Do polar...
Bear hibernation is part of a bear's annual cycle of activity, when its metabolic systems change and activity pauses for a period of time varying with the habitat's climate. Grizzly bears hibernate for 5–7 months each year. But it isn't as clear-cut as curling up and going to sleep ...
In which season do animals like bears often hibernate? A. Spring B. Summer C. Autumn D. Winter 相关知识点: 试题来源: 解析 D。解析:在冬季,一些动物如熊会冬眠,因为冬季食物短缺,通过冬眠来度过寒冷且食物匮乏的时期。春季动物苏醒,夏季动物活跃地觅食等,秋季动物为冬眠做准备。
15.Alaskan black bears hibernate for up to seven months a year.during which time they do not eat or drink.before waking up in virtually the same physical state they fell asleep in.Now experts hope to develop methods of putting humans into a similar sta
Snakes, frogs and bears hibernate in winter.Many animals stay active in winter and adapt to (适应) the cold weather. Some animals save food in summer and autumn and eat it in winter. This is what squirrels do. Other animals make changes in their bodies or behavior (行...
The Arctic winter is a challenging period for all its inhabitants, including the effective predators, polar bears. A frequent question that arises in understanding polar bear habits is, do polar bears hibernate? Unlike brown or black bears, polar bears do not hibernate during the winter, despite...
Some bears hibernate in hollowed-out tree trunks. Some take a months-long rest beneath thick brambles and brush. Others dig into the hills to forge snug dens. And still others discover caves to hide away from the biting winter chill. ...
Alaskan black bears hibernate for up to seven months a year, during which time they do not eat or drink, before waking up in virtually the same physical state they fell asleep in. Now experts hope to develop methods of putting humans into a similar stat