Final Review - Natural Selection & Evolution of Populations

How do mutations contribute to heritable genetic variation in a species?

• By causing identical traits in offspring

• By decreasing genetic diversity

• By introducing new genetic traits

• By preventing reproduction

Which factor is essential for the proliferation of organisms in the environment?

• Decreased ability to survive

• Increased competition

• Better reproductive strategies

• Limited resources

How does natural selection contribute to the adaptation of populations over time?

• By preserving non-beneficial traits

• By promoting genetic drift

• By favoring successful traits

• By hindering reproduction

How does natural selection lead to the adaptation of populations?

• By decreasing genetic variability

• By favoring organisms with less adaptation

• By selecting traits that are not advantageous

• By favoring organisms with traits that enhance survival and reproduction

What is the primary factor that leads to the process of evolution according to the given standards?

• Sudden environmental changes

• The potential for a species to increase in number

• Hereditary traits from one generation to another

• Lack of genetic variation

What is the role of sexual reproduction in creating heritable genetic variation?

• It reduces genetic diversity

• It eliminates mutations

• It introduces new gene combinations

• It maintains homogeneity

What role does competition for limited resources play in evolution?

• It has no impact on evolution

• It accelerates the extinction of species

• It promotes the spread of advantageous traits

• It prevents natural selection

What is a key criterion to evaluate a solution to mitigate adverse impacts of human activity on biodiversity?

• Aesthetics

• Cost-effectiveness

• Safety only

• Popularity

Which concept supports the idea that organisms with advantageous traits tend to increase in proportion?

• Herd behavior

• Survival of the fittest

• Random selection

• Individual preference

Which of the following is NOT a potential result of changes in environmental conditions?

• Increase in the number of individuals of some species

• Emergence of new species over time

• Decrease in the number of individuals of some species

• Extinction of other species