Darwin: The Theory of Evolution by Natural Selection (Grade 12 NSC Matric Life Sciences): Quizzes
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Practise the questions
10 questions from this quiz
What does 'survival of the fittest' actually mean in natural selection?
What does 'survival of the fittest' actually mean in natural selection?
Best adapted to the environment
Which observation did Darwin make about offspring production?
Which observation did Darwin make about offspring production?
Populations produce more than needed
What creates selective pressure in natural selection?
What creates selective pressure in natural selection?
Environmental changes or competition
In the guppy study, what happened in streams with many predators?
In the guppy study, what happened in streams with many predators?
Males had fewer spots
What is the first step in the natural selection process?
What is the first step in the natural selection process?
Variation exists among offspring
Does natural selection create new traits or act on existing variation?
Does natural selection create new traits or act on existing variation?
Acts on existing variation only
Which of Darwin's conclusions relates to reproduction?
Which of Darwin's conclusions relates to reproduction?
Survivors pass on useful traits
Over how many generations does natural selection occur?
Over how many generations does natural selection occur?
Many generations
What did Darwin observe about natural variation?
What did Darwin observe about natural variation?
Variation exists within same species
What happens to organisms without beneficial characteristics?
What happens to organisms without beneficial characteristics?
They are less able to survive and die