Evidence of Evolution Flashcards

Front

What are analogous structures?

Back

Structures in different species that perform a similar function but have a different structure/layout. (butterfly wing, bat wing, bird wing)

Front

What are homologous structures?

Back

Structures that are similar in different species, but may perform different functions (human arm, bat wing, whale fin)

Front

What are vestigial structures?

Back

Structures that have been passed down from ancestors but have little to no function/benefit (appendix, wisdom teeth, goosebumps)

Front

What is the role of DNA as evidence for evolution?

Back

Organisms that have similar sequences of DNA provide evidence of a common ancestor.

Front

What is the role of embryonic development as evidence of evolution?

Back

Organisms in early stages of embryonic development look similar and share similar traits. This indicates the organisms share a common ancestor.