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IMSO 2008 Science Taiwan Second Round Theory I Question 15

IMSO Science · IMSO 2008 Science Taiwan Second Round Theory I

Question 15

Section A: choose the correct answer. The supplied key prints 2 points per question and 50 minutes. Source header says Qualifying Examinations; key says Taiwan (2).

Which is a principle of natural selection?
  1. Members of a species are genetically identical.
  2. Variations are acquired during life and therefore are not inherited.
  3. Most organisms are infertile or produce nonviable offspring.
  4. Helpful variations allow better survival and reproduction than in individuals lacking them.