How do birds help the plant seen here reproduce?
Burs attach themselves to the birds, which carry the burs away.
Burs prevent birds from feeding on the seeds of plants.
Birds don’t damage plants with lots of burs.
Birds only make nests in trees with burs.
How do birds help the plant seen here reproduce?
Burs attach themselves to the birds, which carry the burs away.
Burs prevent birds from feeding on the seeds of plants.
Birds don’t damage plants with lots of burs.
Birds only make nests in trees with burs.