Natural Selection and Evolution Concepts

The video tutorial covers evolution through natural selection, highlighting key figures like Alfred Russel Wallace and Charles Darwin. It explains essential vocabulary such as alleles, gene pool, and allele frequency. The concept of natural selection is detailed with examples like the peppered moth, emphasizing survival of the fittest. The tutorial concludes with a review of genetic vocabulary.

What is the primary focus of this video tutorial?

• The anatomy of mammals

• Evolution through natural selection

• The lifecycle of plants

• The history of Charles Darwin

Who is known as the father of evolution through natural selection?

• Gregor Mendel

• Alfred Russel Wallace

• Charles Darwin

• Isaac Newton

What does the term 'evolution' refer to in the context of this video?

• The change in a single organism over time

• The change in the genetic composition of a population over generations

• The migration patterns of birds

• The adaptation of plants to different climates

What is an allele?

• A group of species

• A variation of a gene for a given trait

• A type of organism

• A type of ecosystem

What is the main idea behind 'survival of the fittest'?

• Survival is based on speed

• Only the largest organisms survive

• Organisms with traits best suited to their environment are more likely to survive

• The strongest organisms always survive

How does the peppered moth illustrate natural selection?

• By changing its diet

• By migrating to warmer climates

• By growing larger wings

• By having color variations that are selected based on environmental conditions

What is meant by 'adaptation' in the context of evolution?

• A variation that contributes to an organism's chance of survival

• A sudden change in an organism's behavior

• A temporary change in an organism's appearance

• A trait that is desired by the organism

What does 'fitness' refer to in evolutionary terms?

• The speed at which an organism can run

• The ability of an organism to produce more surviving offspring

• The size of an organism

• The physical strength of an organism

How is allele frequency defined?

• The number of species in an ecosystem

• The frequency of a specific allele in a population

• The speed of genetic mutations

• The number of offspring produced by an organism

What is a gene pool?

• A type of genetic mutation

• A group of similar species

• A body of water where genes are stored

• A collection of all the alleles in a population