Answer:
alcohol is a mood altering substance
True. E.g. Appendectomy. Removal of the appendix (the suffix is define first)
Answer:
Helper T-cells stimulate B-cells to make antibodies and help killer cells develop. Killer T-cells directly kill cells that have already been infected by a foreign invader. T-cells also use cytokines as messenger molecules to send chemical instructions to the rest of the immune system to ramp up its response.
You may know what to do for something but you also have to show the person that you care and show them kindness. Things are a lot easier when someone shows care AND knowledge into what they're doing.
Hi there!
The answer is C. nicotine.
Tobacco is the carrier of nicotine. This stimulates the brain but also makes you dependent, which can eventually cause (life-long) addiction.
