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