- The body structures for a population of green herons (a species of bird that lives near water) were stable for a long
time. Then, their body structures changed to make the green herons taller. Why did this happen?
a
It is impossible to say without more information.
b
The green heron population wanted to be taller.
Their environment must have changed.
d Organisms naturally become taller over time.
time. Then, their body structures changed to make the green herons taller. Why did this happen?
a
It is impossible to say without more information.
b
The green heron population wanted to be taller.
Their environment must have changed.
d Organisms naturally become taller over time.