- Since deriving energy directly from complex substances is difficult, animals need a digestive system to facilitate this breakdown. Step 4: Summarize the Importance of the Digestive System - The digestive system is crucial for animals as it allows them to convert complex food into simpler, absorba...
Ⅱ. Read the text again and answer the following questions。1. Why do animals migrate at certain times of the year? A. To find food. B. To find a partner. C. In search of warmer weather. D. All the above. 相关知识点: 试题来源: 解析 D ...
2)How do they migrate?3)How many kilometers may Monarch butterflies travel on their journey? 相关知识点: 试题来源: 解析 4. 1)Animals migrate to find food, warmth, or a safe place to breed. 2)Some fly, some swim, and some walk. 3) They travel over 3,200 kilometers. 反馈 收藏 ...
Some people think it is more important to spend public money on roads and motorways than on public transport systems such as railways and trams. To what extent do you agree or disagree? Give reasons for your answer and include any relevant examples from your own knowledge or experience. Write...
Dogs are not the only animals that dig to find a way out of a difficult situation. It’s an instinct hardwired into many animals. They do this to try to get away from someone or something. If you find your dog tunneling hard under a fence, it’s probably trying to find a way out...
Here we’ll explore what migration means, why animals do it and which species are the most prolific when it comes to travelling across the globe.
2. Why do animals make a migration?相关知识点: 试题来源: 解析 动物迁徙的主要原因包括食物获取、繁殖、气候变化、天敌逃避和栖息地破坏。 动物迁徙是为了满足生存需求,主要原因包括: * 寻找食物: 迁徙到食物充足的地区,例如冬季迁徙到南方寻找食物的鸟类。 * 繁殖: 迁徙到合适的繁殖地,例如海龟回到出生地产卵...
Why do some animals migrate? A. To find food and suitable living conditions. B. To hibernate. C. To change their color. D. To look like other animals. 相关知识点: 试题来源: 解析 A。解析:文章提到“Some animals migrate to different places when the seasons change. This allows them to ...
Can't we do without animals in medical research? In this video Dr Simon Festing, our ex-Chief Executive, answers questions about why animals are an essential part of medical work. 为什么非常是他们的秘密在动物研究中? 我们不可以做没有动物在医学研究? 在这位录影博士西蒙・ Festing,我们的前...
Animals routinely play dead when they’re faced with hungry predators, but animals also play dead to run away from unwanted mates, avoid sex, or avoid being cannibalized. What would you do if you encountered a grizzly bear during your hike in a forest? You might yell and...