Unit 6: Evolution & Earth Assessment

Front

What is a fossil?

Back

A fossil is the preserved remains or traces of a once-living organism, typically found in sedimentary rock.

Front

Which of the following is not a fossil?

Back

A living plant growing in a forest.

Front

What is the Law of Superposition?

Back

The Law of Superposition states that in undisturbed sedimentary rock layers, the oldest layers are at the bottom and the youngest are at the top.

Front

What is comparative anatomy?

Back

Comparative anatomy is the study of similarities and differences in the anatomy of different species, which can provide evidence for evolution.

Front

What is biogeography?

Back

Biogeography is the study of the distribution of species and ecosystems in geographic space and through geological time.

Front

What is the significance of homologous structures?

Back

Homologous structures are anatomical features in different species that share a common ancestry, providing evidence for evolution.

Front

What is the role of DNA in evolution?

Back

DNA provides the genetic blueprint for organisms, and variations in DNA sequences can lead to evolutionary changes over time.

Front

What is embryology in the context of evolution?

Back

Embryology is the study of the development of embryos, and similarities in embryonic development among different species can indicate common ancestry.

Front

What does the fossil record show?

Back

The fossil record provides evidence of past life forms and their evolution over time, showing changes in species and the emergence of new ones.

Front

What is the difference between evolution and adaptation?

Back

Evolution refers to the change in the genetic makeup of a population over time, while adaptation is a specific change that enhances an organism's ability to survive in its environment.