Life Changed Over Time

Question 1

Which statement best explains how fossils help scientists understand how living things have changed over time?

Accepted Answer

Fossils show physical characteristics of ancient organisms, allowing scientists to compare them with modern species and see how traits have changed over millions of years.

Answer

Fossils are only found in deserts, so they tell us that ancient animals lived only in dry places.

Answer

Fossils are formed when living animals die and are immediately buried, so they give an exact date of when the animal lived.

Answer

Fossils contain DNA that can be used to recreate extinct species exactly as they were.

Question 2

Which of the following provides the best evidence that living things have changed over time?

Accepted Answer

Fossils of extinct animals, such as dinosaurs, found in ancient rock layers.

Answer

A living species of fish that looks the same as it did 5,000 years ago.

Answer

A rock that contains no fossils.

Answer

The pattern of day and night caused by Earth’s rotation.

Question 3

Which statement best describes what fossils tell scientists about living things?

Accepted Answer

Fossils show how groups of organisms have changed and evolved over millions of years.

Answer

Fossils prove that no living species have changed since they first appeared.

Answer

Fossils are only formed from animals with hard bones or shells.

Answer

Fossils give the precise calendar year when a species first appeared.

Try three questions

Which statement best explains how fossils help scientists understand how living things have changed over time?

Which of the following provides the best evidence that living things have changed over time?

Which statement best describes what fossils tell scientists about living things?

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