Many animals are endangered. Some people argue that we should only protect animals that are useful to human beings. 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 at least 250 words. Task 2...
百度试题 结果1 题目___is the scientific study of how people's and animals' bodies function, and of how plants function. A. Surgery B. Embryology C. Histology D. Physiology 相关知识点: 试题来源: 解析 答案:D 反馈 收藏
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Which animals use echolocation? Bats, whales, dolphins, a few birds like the nocturnal oilbird and some swiftlets, some shrews and the similar tenrec (one of theweirdest animals in the world) fromMadagascarare all known to echolocate. Another possible candidate is thehedgehog, and incredibly som...
Some animals can easily find their way home after a long journey.How do they make it?Scientific research shows that they are born with certain unusual abilities for direction. A certain kind of ants,for example,can count their steps to avoid getting lost.They can go as far as 110 metres ...
根据最后一段However,animalswithsuchunusualabilitiesstillhavedifficultydealingwithenvironmentalchangescausedbyhumanactivities.Forexample,manybirdsdependonstarsfordirection,buttheygetlosteasilyatnightwhencitylightsarekeptonallnight.Tosolvethisproblem,wecansimplyturnoffsomelightsatnight.Clearly,onesmallactofhumansmaymeanal...
On account of our good eyesight, humans are said to be a visual species. However, when you stop and think about it, human language (at least English) has a surprisingly large vocabulary for the squawks, grunts, chirps, honks, growls, etc. that other animals make. What, if anything, ar...
Though many plant parts are inedible for humans, they make a delicious meal for insects. Insects can convert much of this inedible material into something more useful, like fertilizer. These bugs also provide an excellent source of nutrients for people or animals in space. A grasshopper might ...
Someanimalscaneasilyfindtheirwayhomeafteralongjourney.Howdotheymakeit?Scientificresearchshowsthattheyarebornwithcertainunusualabilitiesfordirection.Acertainkindofantscancounttheirstepstoavoidgettinglost.Theseantsliveintheopendesert,sotheyhavenothingtoguidethemalongtheway.It'slikesomeonewalkingsixkilometersthroughadark...