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