Evolution and natural selection

What is an adaptation?

• A trait that helps an organism survive and reproduce in its environment.

• A type of food that organisms consume.

• A method of communication between species.

• A seasonal change in an organism's behavior.

What determines biological fitness in an organism?

• The ability to find food and water

• The number of offspring left by an organism

• The size and strength of the organism

• The lifespan of the organism

What is artificial selection?

• A process where humans breed plants and animals for specific traits.

• A natural process of evolution without human intervention.

• A method of genetic engineering to create new species.

• A technique used to preserve endangered species in the wild.

How long does evolution typically take?

• A few years

• Hundreds of years

• Millions of years

• Thousands of years

What is the role of mutations in evolution?

• Mutations introduce new genetic variations, which can lead to new traits in a population.

• Mutations always result in harmful effects on the organism.

• Mutations have no impact on the genetic diversity of a population.

• Mutations are only beneficial in a stable environment.

What is speciation?

• Speciation is the process by which new species arise from existing species.

• Speciation is the extinction of a species due to environmental changes.

• Speciation is the migration of species to new habitats.

• Speciation is the adaptation of a species to its environment over time.

What evidence supports the theory of evolution?

• Fossil records, genetic similarities, and observed evolutionary changes in species.

• Only fossil records from ancient times.

• Genetic mutations that occur in a single generation.

• The belief in a creator or higher power.

What is the difference between microevolution and macroevolution?

• Microevolution refers to large-scale changes that can lead to the formation of new species, while macroevolution refers to small evolutionary changes within a species.

• Microevolution and macroevolution are the same and refer to changes within a population over time.

• Microevolution refers to small evolutionary changes within a species, while macroevolution refers to large-scale changes that can lead to the formation of new species.

• Microevolution is a process that occurs only in plants, while macroevolution occurs only in animals.

What is natural selection?

• Natural selection is the process where organisms better adapted to their environment tend to survive and produce more offspring.

• Natural selection is the method by which humans breed plants and animals for specific traits.

• Natural selection is the phenomenon where all organisms have an equal chance of survival regardless of their traits.

• Natural selection is the process of creating new species through genetic engineering.

What is the term for when every organism of a species has died?

• Extinction

• Endangerment

• Survival

• Adaptation