Biology  by Bradford
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Populations and communities: grass skirts

17 quick questions on AP Biology topics 8.3 Population Ecology, 8.4 Effect of Density on Populations and 8.5 Community Ecology, 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. J-shaped curve, resources unlimited
  2. Number of individuals per unit area
  3. S-shaped curve leveling off
  4. Largest population a habitat can support
  5. All populations living in one area
  6. A species' role and way of life
  7. One animal killing and eating another
  8. Both species benefit
  9. One benefits, the other is unaffected
  10. One benefits by harming its host
  11. Count of different kinds in an area
  12. Births minus deaths divided by N
  13. Limit that bites harder as crowding grows
  14. Limit like a flood, whatever the crowding
  15. Same needs: one species ousts the other
  16. Measure of richness and evenness
  17. Warblers feeding in different tree zones

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