Evolution and Natural Selection

Front

Natural selection and evolution work on what level of life organization?

Back

Populations

Front

What is an anatomical feature that no longer seems to have a purpose in the current form of an organism?

Back

Vestigial structure

Front

Which term means 'change over time'?

Back

Evolution

Front

What are new features that do not appear in fossils of ancestors called?

Back

Derived traits

Front

What is a trait that makes a species better suited to survive in its environment?

Back

Adaptation

Front

What is the process by which organisms better adapted to their environment tend to survive and produce more offspring?

Back

Natural selection

Front

What is the term for the variety of different types of genes in a species?

Back

Genetic variation

Front

What do we call the formation of new and distinct species in the course of evolution?

Back

Speciation

Front

What is the term for structures in different species that are similar because of common ancestry?

Back

Homologous structures

Front

What is the term for structures that serve similar functions but have different evolutionary origins?

Back

Analogous structures