Evolution and Natural Selection

What is directional selection?

• A type of natural selection that favors one extreme phenotype over the mean or other extreme phenotypes.

• A process that eliminates all phenotypes equally regardless of their traits.

• A form of selection that promotes genetic diversity within a population.

• A mechanism that leads to the extinction of species.

What is the significance of genetic variation in evolution?

• It has no impact on evolution.

• It provides the raw material for natural selection to act upon.

• It leads to a decrease in biodiversity.

• It ensures that all species remain unchanged.

True or False: Individuals undergo evolution.

• True

• False

• Evolution occurs at the individual level.

• Individuals can evolve over time.

What is an adaptation?

• A trait that enhances an organism's ability to survive and reproduce in its environment.

• A process of changing an organism's genetic makeup over generations.

• A method of communication between different species.

• A temporary change in an organism's behavior due to environmental factors.

What does Darwin's theory of evolution suggest?

• Species remain unchanged over time due to environmental stability.

• Species change over time through the process of natural selection.

• Species evolve only through genetic mutations without external influences.

• Species are created by a divine being and do not change.

What is natural selection?

• A process where organisms are eliminated due to environmental changes.

• A method of breeding animals for desired traits.

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

• A theory that explains the origin of species through divine intervention.

What evidence supports the theory of evolution?

• Fossil records, comparative anatomy, molecular biology, and biogeography.

• Only fossil records and comparative anatomy.

• Molecular biology and climate change evidence.

• Biogeography and human history.

How does environmental change influence evolution?

• It has no effect on evolution.

• It can create new challenges and opportunities, leading to natural selection and potentially driving evolutionary change.

• It only affects the physical characteristics of organisms.

• It leads to immediate extinction of all species.

What is evolution?

• Evolution is the process through which species change over time through genetic variation and natural selection.

• Evolution is the study of ancient fossils and their formation.

• Evolution is the belief that species were created in their current form and do not change.

• Evolution is a method of improving agricultural crops through selective breeding.

What is the concept of survival of the fittest?

• The idea that only the strongest individuals survive regardless of their environment.

• The belief that all individuals have an equal chance of survival.

• The notion that individuals best adapted to their environment are more likely to survive and reproduce.

• The theory that survival is random and not influenced by adaptation.