The structure of the lipid bilayer allows small, uncharged substances such as oxygen and carbon dioxide, and hydrophobic molecules such as lipids, to pass through the cell membrane, down their concentration gradient, by simple diffusion.
Architectures manage projects and constructions, design structures, and confirm the safety of the building process, while Construction managers observe the work, and hire the contractors for the operations.
Answer:
because the pain in our body is from the skin or tissue so when you pull the hair you are actually up rooting it from its attachment with ur skin hense you feel the pain