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