<span><u>B. setting a clear goal for the future </u></span>
Explanation:
A stem cell is a cell with the unique ability to develop into specialised cell types in the body. In the future they may be used to replace cells and tissues that have been damaged or lost due to disease.
Trial and Error
.............................
A)mitochondria and chloroplast:- converts energy,oxygen and carbon dioxide are involved in its processes.
B)mitocondria:- have fluids inside it
C)nucleus and ribosomes:- enclosed by two membranes
The primary driving force that stabilizes lipid bilayers is the formation of hydrophobic bonds between fatty acid chains in phospholipids and protein.
The cell membrane is made up of phospolipid bilayer with proteins embedded in between
Lipid bilayer is the structure present in the biological membrane. It consist of two layers of lipids with hydrophilic end facing each other and hydrophobic end facing the outer side.
the inner layer has both the hydrophobic end of the lipid molecules facing each other and bonded by hydrophobic bond van der waals forces.
The outer molecules are bonded with the protein molecules through hydrophilic bonds called hydrogen bonds.
To learn more about lipid bilayers here
brainly.com/question/15362459
#SPJ4