The_____ of cancer researchers is to find better ways to prevent and treat cancer.

It's important that scientists follow certain safety _____ when working with animal toxins.

Nutritionists sometimes carry out surveys to find out things likehow often people exercise or what kinds of food they eat.

Scientists carry out experiments in _____ to test the effectiveness of new drugs.

Some people believe that _____ on animals should be banned.

Researchersinvolved in animal testing are trying to use techniques that are less _____

Thanks to improvements in medical science, many illnesses can now be cured.

An _____ person has strong feelings of joy, sadness, anger, etc