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