Her patience and tact are _____.

Astronauts have brought back _____ of rock from the moon.

Scientists hope that new technology could _____ extinct animals.

The argument rests on a false _____.

Some scientists are trying to _____ extinct species using preserved DNA.

The rainforest is home to an _____ variety of plants and animals.

Scientists are using _____ technology to study ancient DNA.

Researchers have _____ this new method to see whether it works.

My friend and I are _____ to achieve excellent results in the upcoming exam.

A tiger is a _____ because it mainly eats other animals.

After trying several careers, she finally found her _____.

The patient suffers from a _____ illness that makes everyday activities difficult.

Tasmanian devils can suffer from a disease called _____.

The area is _____ for its high crime rate.

Scientists collected several _____ for further examination in the laboratory.

The basic _____ of the research is that extinct species may be restored using DNA.

Researchers want to _____ animals that disappeared hundreds of years ago.

Scientists may be able to _____ an animal using genetic material from preserved cells.

Food was _____ in the region, so the animals had little difficulty surviving.

The laboratory is equipped with _____ genetic technology.

The new treatment is being _____ on a small group of animals first.

Scientists continue to _____ to find ways to protect endangered species.

Lions, tigers and wolves are examples of _____.

Every species has a particular _____ in its ecosystem.

A _____ disease can seriously reduce an animal's ability to survive.

_____ has seriously affected populations of Tasmanian devils.

The city became _____ for its dangerous streets and high levels of crime.

The museum contains rare _____ of animals that are now extinct.

The scientists questioned the _____ that cloning extinct animals would always benefit ecosystems.

With advances in genetics, scientists may one day _____ species that have disappeared.