Evolution (NGSS)

What is the significance of common ancestry in evolution?

• It indicates that species have evolved independently without any common origin.

• It suggests that different species share a common ancestor, indicating how species have diverged over time.

• It proves that all species are identical and do not change over time.

• It shows that species can only evolve in isolation without any relation to others.

What is evolution?

• Evolution is a change in the gene frequencies within populations or species over time.

• Evolution is the process of creating new species from existing ones through artificial selection.

• Evolution refers to the physical changes in an organism's structure during its lifetime.

• Evolution is the belief that all species were created simultaneously and do not change.

What does it mean when a species is considered extinct?

• A species is considered extinct when it completely dies out and no individuals of that species remain.

• A species is considered extinct when it is no longer found in its natural habitat but can be found in captivity.

• A species is considered extinct when it has fewer than 100 individuals left in the wild.

• A species is considered extinct when it evolves into a different species.

What is variation in the context of evolution?

• Variation refers to the genetic differences between organisms of the same species.

• Variation is the process by which species become extinct.

• Variation is the adaptation of organisms to their environment over time.

• Variation is the migration of species to new habitats.

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 become extinct due to environmental changes.

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

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

What is genetic drift?

• A mechanism of evolution that refers to random changes in gene frequencies in a population.

• A process that leads to the adaptation of species to their environment.

• A method of artificial selection used in breeding programs.

• A theory that explains the inheritance of acquired characteristics.

What role does embryology play in understanding evolution?

• It studies the behavior of adult organisms.

• It reveals similarities between different species that suggest common ancestry.

• It focuses solely on the genetic makeup of organisms.

• It examines the fossil records of extinct species.

What is speciation?

• Speciation is the evolutionary process by which populations evolve to become distinct species.

• Speciation is the process of creating new habitats for existing species.

• Speciation refers to the extinction of a species due to environmental changes.

• Speciation is the migration of species to different geographical areas.

What is microevolution?

• Microevolution is the type of evolution that occurs on a small scale, typically within a single population, and does not lead to the formation of new species.

• Microevolution refers to the large-scale changes that occur over millions of years, leading to the emergence of new species.

• Microevolution is the process by which organisms become extinct due to environmental changes.

• Microevolution involves genetic changes that occur in a population over a short period of time, resulting in significant morphological changes.

What is the difference between artificial selection and natural selection?

• Artificial selection is driven by environmental pressures, while natural selection is the process by which humans breed organisms for specific traits.

• Artificial selection is the process by which humans breed organisms for specific traits, while natural selection is driven by environmental pressures.

• Both artificial selection and natural selection are processes that occur without human intervention.

• Artificial selection and natural selection are identical processes that result in the same outcomes.