Fossil Vocab Explore 1 & 2

Front

What is the process whereby the genetic make-up of a population of organisms changes over generations?

Back

Evolution

Front

What is a fossil that consists of the preserved body of an animal or plant?

Back

Body fossil

Front

What is evidence that an organism once existed in an area?

Back

Fossil

Front

What type of fossil is formed when sediment fills a mold of an organic object?

Back

Cast fossil

Front

What is a set of statements or principles devised to explain a group of facts or phenomena?

Back

Theory

Front

What is the term for the remains or traces of organisms from the past?

Back

Fossils

Front

What is the term for a fossil that shows the activity of an organism, such as footprints?

Back

Trace fossil

Front

What is the process of gradual change in species over time?

Back

Evolution

Front

What do we call the natural process that leads to the preservation of organisms in sediment?

Back

Fossilization

Front

What is the term for a fossil that forms when an organism leaves an impression in sediment?

Back

Mold fossil