'Microorganisms called euglena have a flexible pellicle, or membrane, in place of a rigid one of these'
a cell wall
BIOLOGY: Microorganisms called euglena have a flexible pellicle, or membrane, in place of a rigid one of these
Microorganisms called euglena have a flexible pellicle, or membrane, in place of a rigid one of these
Microorganisms called euglena have a flexible pellicle, or membrane, in place of a rigid one of these
BIOLOGY
a cell wall
BIOLOGY