Question

ix) পরস্পর সমান্তরাল সরল রেখা কাকে বলে ? ​

Answer 1

Answer:

two types

There are two types of endoplasmic reticulum: rough endoplasmic reticulum (rough ER) and smooth endoplasmic reticulum (smooth ER). Both types are present in plant and animal cells. The two types of ER often appear as if separate, but they are sub-compartments of the same organelle.