Biology  by Bradford
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C4.1 Populations and communities: grass skirts

20 quick questions on populations and communities, each answered in a word or two. Print a sheet for each team, a key for the checker and a tick sheet, then tape the sheets to the board and race.

How it runs

  1. SnipA runner cuts one strip off the bottom of their team’s sheet.
  2. Answer as a pairBack at the table, they write the answer on the strip. No books.
  3. Get it checkedThe checker reads it against the key: you, or a student holding it.
  4. Back for the nextA tick earns the next strip. Wrong? Back to the table to try again.

The questions on this sheet

The checker’s key, with every answer, prints with the sheets.
  1. Group of one species living in one area
  2. All the populations sharing an area
  3. Frame used to estimate sessile populations
  4. Sites picked so each has an equal chance
  5. Largest population an area can sustain
  6. Rapid rise while resources are unlimited
  7. Numbers level off at carrying capacity
  8. S-shaped graph of population growth
  9. Rivalry within one species for resources
  10. Rivalry between species for a resource
  11. Interaction in which both species benefit
  12. One gains by living on a host it harms
  13. One animal killing and eating another
  14. Introduced organism outcompeting natives
  15. Uses marked animals to estimate numbers
  16. Class of limit that tightens with crowding
  17. Checks if two species occur together
  18. Apex predators regulating lower levels
  19. Chemical suppression of rival plants
  20. Algae living inside reef coral cells

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