Answer;
-Phospholipids and protein
Explanation;
-The plasma membrane is composed of a phospholipid bilayer arranged back-to-back. It is also covered in places with cholesterol molecules and proteins. The plasma membrane is selectively permeable and regulates which molecules are allowed to enter and exit the cell.
- The membrane is an extremely thin layer of lipids and protein that forms outer boundary of every cell, It controls movement of molecules between the cell and its environment, Participates in joining cells to form tissues and organs and also plays important role in the ability of a cell to respond to changes in the cell's environment.
<span>Multicellular organisms carry out the process of specialization of cells which is the process where cells are required to be more specialized to perform functions in living beings such as; nutrition and for that, you need more cells. These organisms must regenerate the entire organism from germ cells.</span>
b. Mutation is always harmful to an organism’s survival.
Explanation:
when mutation occur they can cause termination (death) of an organism or they can be partially lethal. this means that a organism has difficulty adapting to and surviving in its environment.
NB: mutations are usually the cause of many diseases and defects in an organisms life
hope this helps
