Amoeba Sisters Evolution

What does 'fitness' mean in a biological context?

• The speed at which an organism can move

• The number of offspring an organism produces

• The ability to survive in harsh conditions

• The physical strength of an organism

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What is gene flow?

• The flow of genetic information from parent to offspring

• The process of genes mutating within an individual

• The transfer of genes between different populations

• The movement of genes within a population

What is the primary cause of genetic drift?

• Random chance events

• Migration of individuals between populations

• The intentional selection of traits

• The mutation of genes

Which of the following is NOT a mechanism of evolution?

• Individual growth

• Genetic drift

• Natural selection

• Gene flow

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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 structure that increases an organism's fitness

• A structure that appears during embryonic development only

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What does the term 'homologous structures' refer to?

• Structures that are unique to a single species

• Structures in different species with a common function

• Structures in different species that look the same

• Structures in different species with a common ancestor

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What does the term 'analogous structures' refer to?

• Structures that perform the same function but do not share a common ancestor

• Structures that are present only in closely related species

• Structures that share a common ancestor and perform the same function

• Structures that have evolved independently in different species

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What evidence supports the theory of evolution?

• The existence of unicellular organisms

• The fossil record

• The number of extinct species

• The stability of ecosystems

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What does biogeography study?

• The study of biological functions of geography

• The geographical distribution of fossils

• The genetic makeup of organisms in different locations

• The distribution of organisms across the planet

Why is antibiotic resistance in bacteria an example of evolution?

• Because it demonstrates changes in the gene pool over generations

• Because it is a result of artificial selection

• Because it shows individual bacteria evolving

• Because it results in the immediate creation of new species

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