Growing quickly
All of the above
Developing fire-resistant cover
Having deep roots
They have toxic chemicals
They have thorns
A combination of the above defenses
Ants protect them
North America
Antarctica
Asia
Australia
Spring and summer
Winter and summer
Dry and wet
Winter and fall
Rain shadows
Different temperatures
Midlatitudes
Bajadas
Temperate forest
Desert
Tundra
Grassland
They all migrate in different directions
Their territories don't overlap
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.