Question 101
Which of the following best describes the role of natural selection in evolution?EvolutionEvolutionary Mechanismshard
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NSC Life Sciences – South Africa
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Question 102
Which part of the human brain controls balance and coordination?Human physiologyNervous Systemmedium
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Question 103
What is the primary ecological consequence of removing a top predator from an ecosystem?EcologyPopulation Dynamics and Trophic Levelshard
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Question 104
Which process leads to evolution by changing allele frequencies in a population?EvolutionMechanisms of evolutionmedium
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Question 105
Which of the following best describes a food chain?EcologyEnergy flow in ecosystemseasy
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Question 106
What is the main environmental concern associated with deforestation?Environmental studiesHuman impact on environmentmedium
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Question 107
During human reproduction, which structure carries sperm from the testes to the urethra?ReproductionMale reproductive systemmedium
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Question 108
Which process occurs during meiosis but not during mitosis?DNA and geneticsCell division and genetic variationhard
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Question 109
Which hormone regulates blood sugar levels by lowering glucose concentration?Human physiologyEndocrine systemmedium
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Question 110
What is the primary mechanism by which evolution occurs according to natural selection?EvolutionMechanisms of evolutionmedium
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