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