(Print) Use this randomly generated list as your call list when playing the game. Place some kind of mark (like an X, a checkmark, a dot, tally mark, etc) on each cell as you announce it, to keep track. You can also cut out each item, place them in a bag and pull words from the bag.
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B-cattle farming
O-invasive species
O-often cause extinction of native species
N-secondary succession
G-
G-pioneer species
B-
I-endangered species
O-greenhouse effect
N-lichens and mosses
I-
N-inbreeding, increased aggression, being killed by cars