Question 1

What is the term for the complete disappearance of a species from Earth?

Accepted Answer

Extinction

Answer

Adaptation

Answer

Mutation

Answer

Endangered

Question 2

What are fossils?

Accepted Answer

The 'remains' of organisms from millions of years ago, found in rocks.

Answer

Minerals that form in rocks over time.

Answer

Remains of organisms found in water.

Answer

The remains of modern-day organisms.

Question 3

Why are many early forms of life not well-preserved as fossils?

Accepted Answer

Because they were soft-bodied and have left few traces behind.

Answer

Because they were too small to leave traces.

Answer

Because they are too old

Answer

Because they were not found in rocks.

Question 4

Why can scientists not be certain about how life began on Earth?

Accepted Answer

Because the traces of early forms of life were mainly destroyed by geological activity.

Answer

Because life began too long ago.

Answer

Because fossils do not provide enough information.

Answer

Because early forms of life were too small to leave traces.

Question 5

What can we learn from fossils?

Accepted Answer

How much or how little different organisms have changed as life developed on Earth.

Answer

How life began on Earth.

Answer

Which organisms left the most traces as fossils.

Answer

Which organisms are extinct and which are not.

Answer

How fossils are formed and preserved.

Question 6

What is a possible factor that may contribute to a mass extinction?

Accepted Answer

Changes in the environment

Answer

Competition with other species for resources.

Answer

A new disease

Answer

Predation by other species.

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