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