Evidence of Evolution

Front

What is natural selection?

Back

Natural selection is the process by which organisms with traits better suited to their environment tend to survive and reproduce more than those with less advantageous traits.

Front

What does 'vestigial structure' mean?

Back

A vestigial structure is a body part that has lost its original function through evolution, such as the remnants of an eye in cave fish.

Front

Define 'common ancestry'.

Back

Common ancestry refers to the concept that different species are descended from a single ancestor.

Front

What is the significance of homologous structures?

Back

Homologous structures are body parts in different species that share a common ancestry, indicating evolutionary relationships.

Front

What are analogous structures?

Back

Analogous structures are body parts in different species that serve similar functions but do not share a common ancestry.

Front

Explain the concept of adaptation.

Back

Adaptation is a trait that helps an organism survive and reproduce in its environment.

Front

What is the role of mutations in evolution?

Back

Mutations are changes in DNA that can lead to new traits, which may be beneficial, harmful, or neutral in terms of survival.

Front

What is the difference between artificial selection and natural selection?

Back

Artificial selection is the process by which humans breed organisms for desired traits, while natural selection occurs without human intervention.

Front

What evidence supports the theory of evolution?

Back

Evidence for evolution includes fossil records, genetic similarities, and observed changes in species over time.

Front

What is speciation?

Back

Speciation is the process by which new species arise from existing species due to evolutionary changes.