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