Answer: Internal influences may mean health hormones, as hormones are a key structure in how we function. An external influence could be sleep, as humans need sleep as a way to recharge, or diets as they have an effect on both hormones and physical durability
I am pretty sure that the answer is a, genetic engineering. i hope this helps :)
Most teens resist using tobacco because they know that it is bad, and if they start they might not be able to stop.
This is not a total answer, it is just my best guess. I hope this helps. If you have any other questions on this or other questions just ask. I am here to help you. As needed.
It sounds like an ear infection, which isn't as bad as it sounds.
The infection will disappear on its own after a bit of time.
To relieve the pain, try pressuring a moist warm cloth over the infected ear.
Also, you may take pain medication to relieve the pain.
Is the area red, does it feel hot, does it sting?
This website is more educational, and Health pertains to the subject in school regarding such, but I would be happy to help in anyway I can!