History of Life/Earth Vocab

Front

Timeline of Earth's history using fossil and rock ages.

Back

geologic time scale

Front

Limited history based on collected fossils

Back

fossil record

Front

Radioactive carbon has a half-life in the thousands of years.

Back

True

Front

Radioactive carbon builds up after an organism dies?

Back

False

Front

Scientists compare structures to find similarities.

Back

homology

Front

Body structure of living things

Back

anatomy

Front

An unborn or unhatched offspring

Back

embryo

Front

A living thing

Back

organism

Front

Age of rocks and fossils compared to others

Back

relative age

Front

Years since a rock/fossil formed

Back

absolute age