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