The listed emergency contact or family, friends, spouses, etc.
I think you’re talking about polygenetic inheritance
Answer:
Mechanical barriers are devices that provide a physical barrier between the sperm and the egg. Examples of mechanical barriers include the male condom, female condom, diaphragm, cervical cap, and sponge. The condom is the only contraceptive method that helps prevent sexually transmitted infections (STIs).
Not sure what ammonia is but nicotine is addictive. tobacco manufacturers want ton include nicotine cause its addicting.and want more people buying their product