IB Biology A4.1 Pub Quiz: Evolution and speciation

What it covers

IB Biology at SL, with HL cards when you switch the level: A4.1 Evolution and speciation.

The running order

nine rounds and a handout of riddles. Review rounds are drawn from this topic each time you open the quiz, so two classes never get the same paper, and every review round can be redrawn in a click.

1. Riddle me this review
   Course terms as riddles: "I have a head that loves water and two tails that hate it…" Teams write what it is.
2. Close-up fun
   A tiny zoomed-in patch. What's the full picture?
3. Fact or fiction fun
   Myths and true-but-weird facts. Teams write Fact or Fiction.
4. Think it through review
   Scenarios, odd ones out, true or false and why, puzzles: questions to reason through. Give teams a little longer.
5. Films in science-speak fun
   A film plot, described like a research abstract. Name the film.
6. Who am I? Scientists fun
   Three clues, hardest first. 3 points after clue 1, 2 after clue 2, 1 after clue 3.
7. Missing vowels: course terms review
   Your key terms with the vowels taken out.
8. Funny animal noises fun
   YouTube clips of animals making ridiculous noises. Screen off, listen, guess, then watch the reveal.
9. Closest wins fun
   Estimation questions. Nearest team wins the point. Doubles as the tiebreaker.

A taste of the questions

Think it through

Scenarios, odd ones out and true or false and why, from IB Biology.

1. A bodybuilder spends years building huge muscles. Why is this not evolution, even if his children grow up strong too?
2. True or false: a single animal can evolve during its lifetime. Explain.
3. Evolution by natural selection is backed by a huge range of evidence. Why do scientists still call it a theory?
4. Human and chimpanzee cytochrome c proteins are identical, but a human's differs from a yeast's at over 40 positions. What does this suggest?
5. Broccoli, kale, cauliflower, carrot: which is the odd one out, and what does it tell you about evolution?
6. A human arm, a bat's wing and a whale's flipper do very different jobs, yet share the same five-fingered pattern of bones. What does this suggest?

Riddle me this

Course terms as riddles. Teams write what it is.

1. We do different jobs, grasping, flying and swimming, but share one bone plan inherited from a common ancestor. What are we?
2. We do the same job, like a bird's wing and a bee's, but we evolved quite separately. What are we?
3. I turned wild cabbage into broccoli and kale, and wolves into chihuahuas. Humans pick which parents get the next generation. What am I?
4. I make a shark and a dolphin look alike, though one is a fish and one a mammal: unrelated groups, same solutions. What am I?
5. A river, a mountain or an ocean: I keep two populations apart, and given time they may split into two species. What am I?

Quickfire

Short recall from the same topics.

1. Change in heritable traits of a population
2. Farmers picking parents for desired traits
3. Ancestor of kale, broccoli and sprouts