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