Evidence of Evolution

What are homologous structures?

• Structures in different species that have similar parts but different functions, indicating a common ancestry.

• Structures that perform the same function in different species but have different evolutionary origins.

• Structures that are identical in structure and function across different species.

• Structures that arise from convergent evolution and serve similar purposes.

What is the significance of fossil evidence in evolution?

• Fossils provide historical evidence of past life forms and their evolutionary changes over time.

• Fossils are primarily used for dating rocks and determining their age.

• Fossils are only found in sedimentary rocks and have no relevance to evolution.

• Fossils are the remains of organisms that lived in the present day.

What are analogous structures?

• Structures in different species that have similar functions but different evolutionary origins.

• Structures that are similar in different species due to common ancestry.

• Structures that serve the same function but are found in the same species.

• Structures that have the same evolutionary origin but serve different functions.

What is adaptive radiation?

• The process by which organisms diversify rapidly into a variety of forms to adapt to different environments.

• A method of genetic engineering to create new species.

• The phenomenon where species become extinct due to environmental changes.

• A type of evolution that occurs only in aquatic animals.

What is natural selection?

• The process by which organisms better adapted to their environment tend to survive and produce more offspring.

• A method of breeding plants and animals for desired traits.

• The theory that all species are fixed and unchanging over time.

• A random process that affects the survival of organisms.

What is an example of a vestigial structure?

• The tailbone of a human, which is a remnant of a tail from ancestral species.

• The wings of flightless birds, which are used for balance.

• The gills of a frog, which are used for breathing underwater.

• The large size of a whale's flippers, which aid in swimming.

What is speciation?

• The process of natural selection leading to extinction.

• The formation of new and distinct species in the course of evolution.

• The migration of species to new habitats.

• The adaptation of species to their environment.

What does embryology study?

• The study of embryos of various organisms to show similarities in development, indicating a common ancestor.

• The study of adult organisms and their behaviors in different environments.

• The study of genetic mutations in fully developed organisms.

• The study of the fossil record to understand evolutionary history.

What evidence supports the theory of evolution?

• Fossil records, comparative anatomy, molecular biology, and embryology

• Only fossil records and comparative anatomy

• Molecular biology and genetics alone

• Observations of animal behavior

What is the importance of genetic variation?

• It allows for the development of new species.

• It is crucial for a population's ability to adapt to changing environments.

• It decreases the chances of extinction.

• It has no significant impact on evolution.