Natural Selection

Front

What is Natural Selection?

Back

Natural Selection is the process by which organisms better adapted to their environment tend to survive and produce more offspring.

Front

What is an adaptation?

Back

An adaptation is a characteristic or trait that helps an organism survive in its environment.

Front

What is the first step in protein synthesis?

Back

The first step in protein synthesis is the conversion of DNA to RNA.

Front

TRUE or FALSE: Animals can choose how they adapt to their environment.

Back

FALSE: Animals do not choose how they adapt; adaptations occur through natural selection.

Front

Which of the following is NOT an adaptation? Fish, Quills, Speed, Camouflage

Back

Fish is NOT an adaptation; it is a type of organism.

Front

What is genetic drift?

Back

Genetic drift is a mechanism of evolution that refers to random changes in the frequency of alleles in a population.

Front

What is the role of mutations in evolution?

Back

Mutations are changes in DNA that can lead to new traits, which may be beneficial, harmful, or neutral, influencing evolution.

Front

What is the difference between natural selection and artificial selection?

Back

Natural selection occurs naturally based on environmental pressures, while artificial selection is the process by which humans breed organisms for desired traits.

Front

What is fitness in the context of natural selection?

Back

Fitness refers to an organism's ability to survive and reproduce in its environment.

Front

What is the significance of variation in a population?

Back

Variation is crucial for natural selection as it provides the raw material for evolution; without variation, all individuals would be identical.