Mechanisms of Evolution

Behavioral changes of individuals of a species that allow for better survival. (Acquired traits)

• Variation

• Adaptation

• Behavior

• Environment

When every organism of a species has died.

• Evolution
• Natural Selection
• Extinction
• Artificial Selection

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

• Evolution
• Natural Selection
• Extinction
• Artifical Selection

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.

Do organisms "decide" to evolve and change?

• Yes, they know they need to change to survive 
• No, they change because of natural selection

The differences among a species, like different bird beaks, are called

• genes.
• variations.
• traits.
• theories.

What is natural selection?

• The process which individuals that are better adapted to their environment and survive and reproduce better than less adapted individuals

• The process in which inherited characteristics within a population change over generations such that new species arrive overtime

• The human practice of breeding animals or plants that have certain desired traits

• The occurrence of hereditary or nonhereditary differences between different individuals of a population

What is artificial selection?

• The death of every member of a species

• A change in the structure or amount of the genetic material of an of an organism

• The human practice of breeding animals or plants that have certain desired traits

• The process which individuals that are better adapted to their environment and they survive and reproduce better than less adapted

What is evolution?

• A change in the structure or amount of the genetic material of an organism

• The process in which inherited characteristics within a population change over generations such that new species arrive over time

• The occurrence of hereditary or nonhereditary differences between different individuals of a population

• The death of every member of a species

The trees these moths used to live on were white, but got covered in soot (dark substance) during the industrial revolution. Which moth will be more successful in this environment?

• Dark moth

• Light moth

• Both will be equally successful

• Neither will be successful