Evolution and Natural Selection

What does it mean to 'win' at natural selection?

• To survive and reproduce.

• To dominate other species.

• To adapt to any environment.

• To live the longest life possible.

What is speciation?

• The process by which new species arise from existing species.

• A method of classifying organisms based on their physical characteristics.

• The extinction of a species due to environmental changes.

• The migration of species to new habitats.

What is the significance of fossils in understanding evolution?

• Fossils provide evidence of past life forms and show how species have changed over time.

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

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

• Fossils are the remains of organisms that lived in the same time period as dinosaurs.

What is the struggle for existence against other members of an organism's species called?

• Competition

• Cooperation

• Predation

• Symbiosis

What is the difference between artificial selection and natural selection?

• Artificial selection is the process by which humans breed organisms for desired traits, while natural selection occurs without human intervention.

• Artificial selection occurs naturally, while natural selection is controlled by humans.

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

• Artificial selection is a random process, while natural selection is a deliberate choice made by humans.

What is the role of mutations in evolution?

• Mutations have no effect on evolution.

• Mutations introduce new genetic variations that can lead to adaptations.

• Mutations only occur in response to environmental changes.

• Mutations are always harmful to the organism.

What is the process by which modern organisms have descended from ancient organisms?

• Revolution

• Evolution

• Creationism

• Adaptation

What is genetic variation?

• Differences in DNA sequences among individuals in a population.

• The process by which organisms adapt to their environment.

• The study of heredity and the variation of inherited characteristics.

• The total number of genes in a population.

What is a well-tested concept that explains a wide range of observations?

• Scientific theory

• Hypothesis

• Law

• Principle

What is natural selection?

• The process by which organisms with traits better suited to their environment tend to survive and reproduce.

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

• The theory that all species evolve from a common ancestor.

• A technique used in genetic engineering to modify organisms.