4-23:Natural Selection - Notes

Multiple Choice

What is the significance of natural selection in the evolution of species?

• It helps species adapt to their environment.

• It decreases genetic diversity.

• It leads to extinction of species.

• It has no impact on evolution.

Multiple Choice

Why do organisms produce more offspring than can survive?

• To ensure species survival

• To increase genetic diversity

• Due to limited resources

• To adapt to environmental changes

Multiple Choice

What causes natural variety within a species?

• Environmental factors

• Genetic differences

• Dietary habits

• Climate changes

Multiple Choice

Which of the following statements is true about adaptations?

• Adaptations are random.

• Adaptations are driven by variations.

• Adaptations occur overnight.

• Adaptations are not influenced by the environment.

Multiple Choice

Darwin theorized that individuals having an advantage due to their traits or abilities will be more likely to survive and reproduce.  This theory is known as

• evolution
• speciation
• adaptation
• natural selection

Multiple Choice

Which organisms are most likely to survive?

• the best adapted
• the fastest
• the strongest
• the most domesticated (tamed)

Multiple Choice

What is the process by which organisms change over time as those with traits best suited to an environment pass their traits to the next generation?

• Genetic Drift

• Natural Selection

• Mutation

• Gene Flow

Multiple Choice

Where the better adapted organisms survive to pass traits along to offspring.

• Evolution
• Natural Selection
• Extinction
• Artifical Selection

Multiple Choice

Why are advantageous traits more likely to be passed onto offspring?

• Because they are more likely to survive and reproduce.
• Because they come from dominant alleles.
• Because they come from recessive alleles.
• Because the trait is an acquired phenotype.

Multiple Choice

What idea made Charles Darwin famous ?

• Evolution
• Animals
• Natural Selection
• Medicine