Evolution Overview

How is evolution defined?

• Evolution is the change in an individual over a short period of time.

• Evolution is the change in populations over long periods of time.

• Evolution refers to the development of of an organism over time.

• Evolution is the process of creating new species in a laboratory.

What organism did all life evolve from across the past 4 billion years?

• a single celled bacteria

• Fungi
• Protists

• a dinosaur

How do many genetic variations arise in a population?

• from mating with other species

• from random mutations

• from genetic engineering

• from bacteria

Why have the number of DARK colored peppered moths increased across the past several generations?

• MORE pollution (soot) has been released, causing LIGHT moths to camouflage better.

• LESS pollution (soot) has been released, causing DARK moths to camouflage better.

• No pollution has been released so all colors survive equally.

• MORE pollution (soot) has been released, causing DARK moths to camouflage better.

What is an adaptation?

• An adaptation is a method of communication between species.
• An adaptation is a seasonal change in an organisms traits.

• An adaptation is a trait that improves an organism's ability to survive and reproduce in its environment.
• An adaptation is a type of gene that organisms consume.

What is meant by an evolutionary "trade-off"?

• An evolutionary trade-off refers to the ability to adapt without any resource limitations.
• An evolutionary trade-off is a strategy to enhance all traits simultaneously.
• An evolutionary trade-off is a compromise between different traits or functions due to limited resources.
• An evolutionary trade-off is a method of selecting the best trait without any compromises.

What is meant by the term "Universal Genetic Code"?

• The Universal Genetic Code is a theory about DNA that only applies to humans.

• It is a set of rules for how proteins are synthesized in plants only.
• The Universal Genetic Code is a historical document outlining genetic similarities.

• All organisms have the universal molecule DNA, reflecting a common evolutionary heritage between all of us.

How does fossil evidence support the theory of evolution?

• Fossils show the age of the Earth

• It shows progression of species throughout history

• Fossils are related to species development

• Fossils provide evidence of static species

How do homologous structures provide evidence of evolution?

• They are only found in mammals.

• They indicate that species are unrelated but look similar so evolution must have occurred.

• They are a result of environmental adaptation.

• They show that different species have similar body parts that originated from a common ancestor

Why do less complex organisms still exist even though humans and other complex organisms have evolved?

• They are well-adapted to their environments and occupy ecological niches that suit their simpler structures.

• Less complex organisms are less successful in their environments so eventually they will all go extinct.

• Complex organisms have no impact on the survival of simpler ones.
• All organisms evolve at the same rate regardless of complexity.