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IMSO 2008 Science Taiwan Second Round Theory I Question 16

IMSO Science · IMSO 2008 Science Taiwan Second Round Theory I

Question 16

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).

What does this graph suggest? Horizontal axis: organism type. Vertical axis: number of amino-acid differences compared with human cytochrome c.

Question illustration
  1. Organism size shows evolutionary similarities.
  2. Butterflies and humans are closely related.
  3. Amino acids can show evolutionary similarities.
  4. Monkeys and fish have similar biochemical features.