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