Prep Africa

NSC Life SciencesSouth Africa

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Question 121

Which gas is primarily responsible for the greenhouse effect and global warming?
Environmental studiesEnvironmental studiesmedium

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Question 122

Which of the following best explains homologous structures?
EvolutionEvolutionhard

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Question 123

Which ecological concept describes the role and position a species has in its environment?
EcologyEcologyhard

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Question 124

Which process leads to genetic variation within a species?
DNA and geneticsDNA and geneticsmedium

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Question 125

Which human body system is primarily responsible for transporting oxygen and nutrients to cells?
Human physiologyHuman physiologyeasy

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Question 126

Which of the following is a consequence of deforestation on the environment?
Environmental studiesEnvironmental studiesmedium

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Question 127

How does the hormone insulin regulate blood glucose levels?
Human physiologyHuman physiologymedium

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Question 128

Which of the following adaptations is an example of convergent evolution?
EvolutionEvolutionhard

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Question 129

Which blood vessel carries oxygenated blood away from the heart?
Human physiologyCirculatory Systemeasy

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Question 130

In an ecosystem, what term describes organisms that produce their own food?
EcologyEcosystem Componentseasy

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