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