Evolution by Natural Selection (Grade 12 NSC Matric Life Sciences): Quizzes
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10 questions from this quiz
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Practise the questions
10 questions from this quiz
What term describes the slow evolutionary process most species undergo?
What term describes the slow evolutionary process most species undergo?
Gradualism
Why can we observe evolution in bacteria more easily than in large mammals?
Why can we observe evolution in bacteria more easily than in large mammals?
They reproduce extremely quickly
Which bacterium causes tuberculosis?
Which bacterium causes tuberculosis?
Mycobacterium tuberculosis
Why is TB particularly concerning in South Africa?
Why is TB particularly concerning in South Africa?
Highest infection rates globally
What happens to normal bacteria when antibiotics are introduced?
What happens to normal bacteria when antibiotics are introduced?
They begin to die
What is the raw material that natural selection works with?
What is the raw material that natural selection works with?
Natural variation in populations
What process allows resistant bacteria to transfer resistance genes to other bacteria?
What process allows resistant bacteria to transfer resistance genes to other bacteria?
Horizontal gene transfer
What happens if patients don't complete their full course of antibiotic treatment?
What happens if patients don't complete their full course of antibiotic treatment?
Resistant bacteria survive and reproduce
How many different drugs are used to treat multi-drug resistant TB?
How many different drugs are used to treat multi-drug resistant TB?
Five
What advantage do resistant bacteria gain after antibiotics kill normal bacteria?
What advantage do resistant bacteria gain after antibiotics kill normal bacteria?
Less competition for resources