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