Fossils and Paleontology Flashcard

Front

Fossils are the preserved remains or traces of ________________ organisms.

Back

ancient

Front

The study of fossils is called __________________.

Back

paleontology

Front

Fossils found in lower layers of sedimentary rock are generally ________________ than those found in higher layers.

Back

older

Front

__________________ dating is used to determine the actual age of a fossil by analyzing radioactive isotopes.

Back

Radioactive

Front

A ________________ fossil shows evidence of the activity of ancient organisms, such as footprints or burrows.

Back

trace

Front

Fossils can only be found in sedimentary rocks.

Back

False

Front

The fossil record shows that life on Earth has changed over time.

Back

True

Front

Are soft tissues, like skin, the most likely parts of an organism to become fossilized?

Back

False

Front

Fossils help scientists understand past environments and climate conditions.

Back

True

Front

Did dinosaurs and humans coexist during the same geological time period?

Back

False