Scientists now have some surprising answers about whether brain power______as we get older

Now scientists have found in the past few years ______.A．the exposure of DNA to the public

CAN ANIMALS BE MADE TO WORK FOR US？ Can animals be made to work for us？ Some scientists think that one day animals may be trained to do a number of simple jobs that are now done by human beings. The

What conclusion can be drawn from the scientists observation？A．Insects have developed some

Scientists have known for some time that certain plants, called hyperaccumu-lators, can co

Some social scientists have claimed that divorce harms children for the rest of their li

The author thinks good scientists are those who have all the following EXCEPTA．some genera