Evidence for Evolution

What is an analogous structure?

• A body part that shares a similar function and a common evolutionary origin with another body part in the same species.

• A body part that shares a similar function but not a common evolutionary origin with another body part in a different species.

• A body part that has no function in the organism but is similar in structure to another body part in a different species.

• A body part that is completely different in function and structure from any other body part in any species.

What is the fossil record?

• A collection of all known fossils and their placement in sedimentary rock layers, providing evidence of the history of life on Earth.

• A database of all living species currently on the planet.

• A record of all geological events that have occurred over time.

• A list of all extinct species without any context of their existence.

How do embryonic similarities provide evidence for evolution?

• They indicate that species have adapted to different environments.

• They suggest a common ancestry, as early developmental stages show comparable structures.

• They prove that all species are genetically identical.

• They demonstrate that evolution is a random process.

What is the significance of sedimentary rock layers in understanding evolution?

• They provide a chronological record of Earth's history, showing how environments and life forms have changed over time.

• They are primarily composed of igneous rocks that indicate volcanic activity.

• They contain fossils that are only relevant to the study of dinosaurs.

• They are formed exclusively in ocean environments and do not reflect terrestrial changes.

What is the difference between homologous and analogous structures?

• Homologous structures indicate similar functions without a common evolutionary origin, while analogous structures indicate a common ancestor.

• Homologous structures are found in different species, while analogous structures are found in the same species.

• Homologous structures indicate a common ancestor, while analogous structures indicate similar functions without a common evolutionary origin.

• Homologous structures are always more complex than analogous structures.

What is natural selection?

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

• Natural selection is the method by which species are created through random mutations.

• Natural selection is the phenomenon where all organisms have an equal chance of survival regardless of their traits.

• Natural selection is the process of breeding organisms with desirable traits to enhance their survival.

What role did Charles Darwin play in the theory of evolution?

• He discovered the structure of DNA.

• He proposed the theory of natural selection as a mechanism for evolution, based on his observations of species variation.

• He was the first to classify living organisms into kingdoms.

• He invented the microscope to study cells.

How do fossils provide evidence for evolution?

• Fossils show how life forms present today are identical to those in the past.

• Fossils provide no information about the changes in life forms over time.

• Fossils show how life forms present today are different from those in the past, indicating changes over time.

• Fossils only represent extinct species without any relation to current life forms.

What is the concept of descent with modification?

• Descent with modification is the principle that species change over time, giving rise to new species while retaining some characteristics of their ancestors.

• Descent with modification refers to the idea that all species are static and do not change over time.

• Descent with modification is the belief that species are created independently and do not share common ancestors.

• Descent with modification means that species can only become extinct and cannot evolve into new forms.

What evidence do fossils provide about extinct species?

• Fossils show that some species have gone extinct, providing insight into the history of life on Earth.

• Fossils indicate that all species are still present today.

• Fossils are only found in certain regions of the world.

• Fossils provide no information about the history of life on Earth.