1阅读短文,从每题所给的A、B、C、D四个选项中,选出最佳选项。The world's oceans contain a vast number of strange c
Animals that eat this plant may suddenly find that there is no available food so they starve to death.Another possible cause of endangered or extinct species is climate change and rising se a levels. As the Earth gets warmer, this has profound effects on animal and plant life everywhere. ...
meanwhile, is that 'perhaps it will not be until some new and superior species emerges on earth, some computerised android, which breeds humans in tiny cages, force-feeds them, drains their bile, eats them, that we will seriously begin to crusade for the abolition of animal-on-animal cannib...
They are located on chromosomes and contain the information that is needed to make certain proteins that in turn produce specific ribonucleic acids (RNA). Each living cell is the carrier of a complete set of genes, which are located in a linear order on chromosomes and are species specific. ...
This makes the number of carbon-eating plankton(浮游生物)species rise because they feed on the whales' waste. The plankton are helpful because they take in the carbon dioxide that is made by some human activities. They also give off lots of oxy-gen, so they are helpful to the world we ...
alarge number The balance of nature on our planet is being threatened as 1of species are being drive to extinction(大量物种正在被迫灭绝). One of the main reasons is loss of habitat. 2 Animal habitats are being destroyed(动物的栖息地正在被破坏) as humans search for more natural resources. ...
Again, the Bible states that the earth was created in 6 days. A few hints of numerology still remain in the ideas that certain numbers such as 7 are “lucky” and that numbers like 13 are “unlucky.” Another example is the common expression “bad news comes in threes.” Although such...
A) To teach kids about animal protection. C) To see some rare animals in cages.B) To learn how popular zoos could be. D) To give her little nephew a treat. A) He enjoys excellent health. C) He coaches tennis players every week.B) He is keen on extreme sports. D) He spends mos...
Some are in roadside zoos. Some are pets. Many are abused. A lack of regulation on big cats is putting animals and humans at risk.
It is difficult to answer that how many species are there on earth. According to the IUCN (International Union of Conservation of Nature), the total number of animal and plant species is more than 1.5 million. It is doubtful that how many of the species are yet to be discovered and descr...