Mcqs Submitted by Saba Irfan, Contributor at PakMcqs

Author: Saba Irfan

I am SABA IRFAN from Hyderabad Pakistan. I have done my bachelors in zoology from University of SINDH. I am an enthusiastic zoologist, and Silver medalist of my batch. I am currently doing teaching. I am also article and blog writer. I am currently looking for jobs in field of education. I am also looking for content writing jobs online.

The respiratory surface of unicellular organisms is__________?

A. Specific organ
B. Cell membrane
C. Cell wall
D. Nuclear membrane

Submitted by: Saba Irfan