I agree. Not having sex in any point in your life is the only guaranteed method of preventing pregnancy or contracting an STI.
Answer: Option C
Explanation:
The cell membrane of the organism are semipermeable which means it allows only some of the molecules to pass through the cell membrane. It structure of the cell membrane is made of phosphorous and lipids.
The two main regions of cell membrane is polar head region which is hydrophillic in nature and other region is the tail region which is non polar hydrophobic region.
The tail regions repeals the head region of the cell membrane.
This process would be known as thinking
