A. Sisters evoluiton

What does 'fitness' mean in a biological context?

• The speed at which an organism can move

• The number of offspring an organism produces

• The physical strength of an organism

• The ability to survive in harsh conditions

What does the term 'gene flow' refer to?

• The creation of new genes through mutation

• The movement of genes between populations

• The transfer of genes from parent to offspring

• The movement of genes within an individual

What role does genetic drift play in evolution?

• It ensures that beneficial traits are passed on to the next generation

• It changes a population's genetic makeup due to random chance events

• It causes populations to become more similar over time

• It increases the rate of mutation in a population

What are homologous structures?

• Structures in different species with similar functions but different origins

• Structures in different species with different functions but similar origins

• Structures that are identical in all species

• Structures that have no function

Why are some chickens observed to have a claw on their wing?

• It is an example of a homologous structure

• It is used for defense

• It is a vestigial structure

• It is a result of a recent mutation

What is a vestigial structure?

• A structure vital for an organism's survival

• A structure that has lost all or most of its function

• A newly evolved structure

• A structure that increases an organism's fitness

What evidence supports the theory of evolution?

• The size of the largest organisms

• The number of species alive today

• The color variations in a single species

• The fossil record

What does the fossil record provide evidence for?

• The stability of species over millions of years

• The existence of ancient civilizations

• The immediate appearance of modern species

• Changes in population characteristics over time

What does 'biogeography' study?

• The geographical distribution of biological organisms

• The study of biological organisms in urban areas

• The genetic makeup of organisms in isolated locations

• The migration patterns of birds

How does the concept of continental drift relate to evolution?

• It helps explain the geographical distribution of related species

• It disproves the theory of evolution

• It supports the theory of uniformitarianism

• It explains the distribution of fossil fuels