Evolution and Natural Selection Part III

What does wearing a yellow jersey in a dodgeball game symbolize in the analogy used to explain natural selection?

• Being the fastest player

• Having a genetic mutation

• Being the team captain

• Choosing the best strategy

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What is natural selection?

• A process where the strongest survive and reproduce

• A random event that changes organism traits

• A deliberate change in an organism's traits

• A mechanism to ensure all organisms survive

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What is an example of a random mutation that can be beneficial?

• Antibiotic resistance in bacteria

• Color blindness

• Decreased muscle mass

• Increased susceptibility to sunburn

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What role does the environment play in natural selection?

• It observes and records changes

• It has no impact

• It determines which traits are advantageous

• It changes genetic codes directly

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How does sickle cell trait provide an advantage against malaria?

• It attracts fewer mosquitoes

• It enhances the immune system

• It changes the shape of red blood cells

• It increases blood production

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Why might sickle cell trait not be advantageous in non-malarial regions?

• It causes health issues

• It attracts more mosquitoes

• It enhances physical abilities

• It has no effect on survival

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How does antibiotic resistance demonstrate natural selection?

• Antibiotics mutate to target all bacteria

• Resistant bacteria survive and reproduce, spreading resistance

• All bacteria eventually become resistant

• Bacteria choose to become resistant

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What evidence supports the idea that all living things descend from bacteria?

• Behavioral studies

• Fossil records

• Genetic similarities

• Cultural beliefs

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What are homologous structures?

• Structures with different functions but a common origin

• Structures with different functions but similar appearance

• Structures with the same function but different appearance

• Structures with the same function and appearance

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What are analogous structures?

• Structures that are unrelated in function and structure

• Structures that perform different functions but are structurally similar

• Structures that perform the same function but are structurally different

• Structures that perform the same function and are structurally similar

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