ANSWER: D (( ALL OF THE ABOVE))
Answer:
The word demography comes from two ancient Greek words, demos, meaning “the people,” and graphy, meaning “writing about or recording something” — so literally demography means “writing about the people.”
The first trimester is when the embryo attaches to the placenta by the umbilical cord and the placenta make contact with the uterus.
From what i heard, when carbon monoxide is in a person's blood (smoker or non smoker) it can kill you, it is a sign of poison in your blood. With smokers it is worse because they are smoking something that has a high content of carbon monoxide which can cause heart problems, lung cancer, birth defects, etc. So thats what i think
