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