Evidences of Evolution

Front

What are analogous structures?

Back

Structures in different species that have similar functions but different evolutionary origins, indicating convergent evolution.

Front

What are homologous structures?

Back

Body parts that are similar in structure and position but not function, indicating a common ancestor.

Front

What is the significance of amino acid sequencing in evolution?

Back

The fewer the differences in amino acid sequences between two organisms, the closer related they are, indicating a more recent common ancestor.

Front

From which type of organisms do scientists agree that birds are descended?

Back

Reptiles.

Front

What are vestigial structures?

Back

Body parts that have lost their original function through evolution, such as the human appendix.

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What is the theory of evolution?

Back

The scientific explanation for the diversity of life, stating that species change over time through processes like 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

What is a common ancestor?

Back

An ancestral species from which two or more species have evolved.

Front

What is the difference between homologous and analogous structures?

Back

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

Front

What evidence supports the theory of evolution?

Back

Fossil records, comparative anatomy, genetic similarities, and observed evolutionary changes.