Evolution Review 1

Front

What are analogous structures?

Back

Structures that have similar functions but different evolutionary origins, such as shark fins and dolphin fins.

Front

What is a vestigial structure?

Back

A structure that has lost most or all of its original function through the course of evolution, like the human appendix.

Front

What are homologous structures?

Back

Structures that are inherited from a common ancestor, indicating evolutionary relationships.

Front

What is evolution?

Back

The process through which species change over time through adaptations and natural selection.

Front

What is natural selection?

Back

The process by which organisms better adapted to their environment tend to survive and produce more offspring.

Front

Give an example of an analogous structure.

Back

Bird wings and butterfly wings are examples of analogous structures.

Front

What is the difference between homologous and analogous structures?

Back

Homologous structures share a common ancestry, while analogous structures serve similar functions but do not share a common ancestry.

Front

What is adaptation in the context of evolution?

Back

A trait that helps an organism survive and reproduce in its environment.

Front

What role does competition play in evolution?

Back

Competition for resources can drive natural selection, leading to evolutionary changes.

Front

What is the significance of fossil records in understanding evolution?

Back

Fossil records provide evidence of past life forms and their evolutionary changes over time.