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Biology quiz for grades 5 to 13

250 Biology questions across three grade bands. In the game you pick the subject and the band, and every duel draws questions you haven't had yet. Here are six examples, two from each band.

Play BiologyGrades 5–7: 100 · Grades 8–10: 100 · Grades 11–13: 50

Sample questions

Grades 5–7 · Mammals

Koalas eat almost nothing but the leaves of which plant?

  1. AEucalyptus
  2. BBamboo
  3. CAcacia
  4. DPalm
Show the answer

A: Eucalyptus

Grades 5–7 · Skeleton and muscles

What is the chain of bones that supports your back called?

  1. ASpine (backbone)
  2. BPelvis
  3. CShoulder blade
  4. DKneecap
Show the answer

A: Spine (backbone)

Grades 8–10 · Evolution

What do we call the deliberate choice of breeding animals or plants by humans?

  1. ANatural adaptation
  2. BGenetic drift
  3. CConvergent evolution
  4. DArtificial selection
Show the answer

D: Artificial selection

Grades 8–10 · Invertebrates

To which group of animals, mostly with five-rayed bodies, does the starfish belong?

  1. ACnidarians
  2. BMolluscs
  3. CCrustaceans
  4. DEchinoderms
Show the answer

D: Echinoderms

Grades 11–13 · Ecosystems

What is the term for the exact role and requirements of a species in its habitat?

  1. ANiche
  2. BBiotope
  3. CTerritory
  4. DHabitat
Show the answer

A: Niche

Grades 11–13 · Behaviour

What is it called when a harmless species copies the appearance of a poisonous one?

  1. ACamouflage
  2. BSymbiosis
  3. CMimicry
  4. DMetamorphosis
Show the answer

C: Mimicry