Answers 66-70 are based on the following
passage. Insects entombed in fossilised amber for tens
of millions of years have provided the key to creating a new generation of
antibiotic drugs that could wage war on modern diseases. Scientists have
isolated the antibiotics from microbes preserved either inside the intestines of
the amber-encased insects or in soil particles trapped with them when they were
caught by sticky tree resin up to 130 million years ago. Spores of the microbes
have survived an unprecedented period of suspended animation, enabling
scientists to revive them in the laboratory.