Evolution & Classification

Front

What is evolution?

Back

Evolution is the process through which species change over time through variations and natural selection.

Front

What is a common ancestor?

Back

A common ancestor is a species from which two or more different species have evolved.

Front

What are homologous structures?

Back

Homologous structures are anatomical features in different species that share a common ancestry, even if they have different functions.

Front

What is embryology?

Back

Embryology is the study of the development of embryos, which provides evidence for evolution by showing similarities in early development among different species.

Front

What are vestigial organs?

Back

Vestigial organs are body parts that have lost their original function through evolution, such as the human appendix.

Front

What are the three domains of life?

Back

The three domains of life are Archaea, Bacteria, and Eukarya.

Front

What is a cladogram?

Back

A cladogram is a diagram that shows the evolutionary relationships among various biological species based on shared characteristics.

Front

What evidence supports the theory of evolution?

Back

Evidence for evolution includes fossil records, genetic similarities, embryological development, and homologous structures.

Front

What is natural selection?

Back

Natural selection is the process by which organisms better adapted to their environment tend to survive and produce more offspring.

Front

What is speciation?

Back

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