Answer:
B
Explanation:
I personal will go with B cause viruses attack your immune system then destroy healthy cells then copy it self through out the rest of the body.
The lipids form an insoluble barrier.
Phospholipids, a type of lipids, don’t dissolve in water. Membrane-forming lipids have like other lipids hydrophobic region, but also in addition, they have hydrophilic region. In the cell membrane, they are organized in a lipid bilayer. In each layer, hydrophilic heads face a solution, and hydrophobic tails are inside the layer. That way, phospholipids are in contact with water, but still present a barrier because of their hydrophobic tails inside the layer.
Answer:
reproduction
We don't HAVE to reproduce to live, but it needed for us to be brought in to this world.
Explanation: