Red blood cells do not have: (i) Cell membrane (ii) Cytoplasm (iii) Plastid (iv) Nucleus

• A. (i) and (ii)
• B. (ii) and (iii)
• C.  Process 1 is a reversible, physical change while process 2 is an irreversible, chemical change.
• D. (i) and (iv)
• E. None of these