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