I think the answer is that they PUT IT OFF ON SOMEONE ELSE. im not sure though, do u have any answer choices? let me know if its right or not! :)
I think the answer you are looking for is tobacco
I would put d. because we can affect some but some are also genetic
We can look at this in many different ways.
The testicals in the scrotum produce the male gamete, sperm, which is injected in seminal fluids by the penis. The female reproductive system is rather different, containing mainly of internal organs. This is the female gamete, ovum, is produced in the ovaries and is released monthly to travel to the uterus; by the Fallopian Tubes. A female also consists of something we know as a Vagina, a female sex I love to eat so much poop organ mainly used during sexual intercourse with another organism - and childbirth which the vagina takes place with.
Read more on Brainly.com - brainly.com/question/9604858#readmore
Aerobes can't survive without oxygen