Need asap for life or death has anyone from connections taken the ap biology mid-semester i need answers fast! i have a f and need to pass this check in order to compete in my horseshow this !

How have high taxes on tobacco products impacted the number of people who use them? a. the number of tobacco users has increased. b. the number of tobacco users has decreased. c. the number of tobacco users has not changed. d. the number of adolescent tobacco users decreased, while the number of adult users increased

Which best describes a gene? a. a sister chromatid b. a chromosome c. a tetrad d. a piece of a chromosome

Were you able to observe the nucleolus in any of the cells if so which ones