5A: Natural Selection Part 2

Multiple Choice

What is Natural Selection?

• Natural selection is the method by which all species are created equally.
• Natural selection is the process of random genetic mutations.
• Natural selection is the process by which organisms that are better adapted to their environment tend to survive and reproduce.
• Natural selection is the belief that all organisms are designed perfectly.

Multiple Choice

What is Microevolution?

• Microevolution refers to the evolution of entirely new species.
• Microevolution is the process of small evolutionary changes within a species.
• Microevolution is the process of large-scale evolutionary changes over millions of years.
• Microevolution is the study of genetic mutations in unrelated species.

Multiple Choice

Mutations are caused by?

• Environmental factors and DNA replication errors
• Nutritional deficiencies alone
• Viral infections exclusively
• Genetic inheritance only

Multiple Choice

Mutations increase?

• genetic stability
• cellular uniformity
• genetic variation

• phenotypic regression

Multiple Choice

What is trait is favored in directional selection?

• One Extreme

• Both Extremes

• Average trait

Multiple Choice

What trait is favored in disruptive selection?

• Both Extreme traits

• Common traits
• Neutral traits
• One Extreme Trait

Multiple Choice

What trait is favored in stabilizing selection?

• Extreme traits
• No traits
• Random traits
• average trait

Match

Match the folowing

• Species moving into a population

• Species moving out of a population

• often increases genetic variation

• often decreases genetic variation

• Species moving in and out of a population

immigration

Emmigration

Gene Flow

Genetic Drift

Migration

• immigration

• Emmigration

• Gene Flow

• Genetic Drift

• Migration

Dropdown

Genetic Drift ​

Select answer

in genetic variation because the population is ​

Select answer

rare traits.

Multiple Choice

Genetic Equilibrium is?

• A process that leads to the extinction of a species over time.
• A temporary change in allele frequencies due to environmental factors.
• A condition where only dominant alleles are expressed in a population.
• A state in a population where allele and genotype frequencies remain constant over generations.