Asked by LARRYBOY
Which of the following is true about producers?
A.They are helpful to some ecosystems and not essential to any ecosystems.
B.They are helpful to all ecosystems but not essential to any ecosystems.
C.They are essential to some ecosystems
D.They are essential to all ecosystems
A.They are helpful to some ecosystems and not essential to any ecosystems.
B.They are helpful to all ecosystems but not essential to any ecosystems.
C.They are essential to some ecosystems
D.They are essential to all ecosystems