Carry out a literature review to determine the prevalence of HIV / AIDS globally ,regionally or locally​

So i have a lot of answers answered but it says i still need to answer more questions. why is it doing that? how many questions need to be answered?

Which is the link between heredity and tobacco addiction

According to harry harlow’s experiment what behavior did the baby monkeys exhibit when the cloth mother was present? a. they cowered in the corner of the room. b. they were willing to explore the room. c. they sought refuge with the wire mother. d. he behaved aggressively toward the cloth mother.