c9z

The workers extracted limestone from the ….

quarry

The building was constructed from blocks of ….

limestone

Each … of rock represents a different geological period.

stratum

Fossils are most commonly found in … layers.

sedimentary

From the footprints, the detective … the two people had entered the room.

deduced

From the tone of her voice, he made the … that she was upset.

inference

Scientists once believed the Moon was … from Earth after a massive collision.

struck off

A horse is a classic example of a ….

quadruped

Her eyesight … as she got older.

deteriorated

Rabbits … into the ground to build safe nests.

burrow

New technologies continue to … every year.

emerge

Darwin spend an … amount of time studying different species.

immense

The … was one of the top predators in the ancient seas.

plesiosaur

He decided to … from the army after his injury.

resign

Who’s in … maintaining the laboratory equipment:

charge of

Lamarck … the term “invertebrate.”

coineed

Spiders, worms, and jellyfish are examples of ….

invertebrates

Lamarck’s ideas about evolution were highly ….

controversial

Many scientists study the causes of dinosaur ….

extinction

Leonardo da Vinci argued that fossils did not form … in the earth.

spontaneously