Tundra
Grassland
Desert
Temperate forest
Dry and wet
Winter and summer
Spring and summer
Winter and fall
Asia
North America
Antarctica
Australia
All of the above
Growing quickly
Developing fire-resistant cover
Having deep roots
The savanna gets a fair amount of rain, at least 20 inches a year.
A combination of the above defenses
They have toxic chemicals
They have thorns
Ants protect them
They all migrate in different directions
They eat different foods
Their territories don't overlap
They avoid each other as much as possible