Most addictive drugs come in two general classes: stimulants and depressants. ... Stimulants stimulate the central nervous system and depressants do the opposite, slowing it and all the parts of the body controlled by the central nervous system down.
They have half the chromosomes in body cells. One half are from one parent the other half is from the other parent.
Answer:
i think it is A
Explanation:
please follow hope itvhelped out
A is the correct answer to this
Answer:
A mixture of other factors — like behavioral patterns and genetics. They are accounted for a big number of early deaths.
A CDC study has stated that behavioral patterns ( which take up roughly 40 percent of the deaths) and genetics ( somewhere around 30 percent of all the deaths) are the most common causes of premature deaths. Social circumstances (which take up 15 percent), health care (around 10 percent), and environmental exposure ( somewhere around 5 percent).