1.   The undertaking will enable scientists to test theories about how marine life moves about the reef.

2.   Although for years scientists have tested new medicines in adults, they are now including more children than ever in drug experiments.

3.   American and Mexican scientists are testing the volcano for signs of danger.

4.   As a part of the experiment, scientists tested the volunteers for drug resistance.

5.   At the Massachusetts Institute of Technology, scientists are testing molecular decoys to ward off brain-smothering toxins.

6.   At the same time, scientists were testing seemingly nontoxic drugs in animals that promised to save the lives of many of these patients.

7.   Black holes at the LHC could allow scientists to test another idea.

8.   Farmers also planted control plots of monocultures, allowing scientists to rigorously test the importance of the mixtures in the health and productivity on these farms.

9.   For example, scientists are testing in mice a way to battle tick-borne encephalitis, a frequently fatal disease that attacks the central nervous system.

10.   If scientists can test the genes, however, they can tell if the plant has the desired trait when it is still a seedling.