A.They are widely distributed
B.They are firmly fixed to soil
C.They alone have the capacity to fix the atmospheric CO2 in the presence of sunlight
D.There are more herbivorous animals than the carnivorous
A.They are widely distributed
B.They are firmly fixed to soil
C.They alone have the capacity to fix the atmospheric CO2 in the presence of sunlight
D.There are more herbivorous animals than the carnivorous