the negative impact is that the air will get polluted and also that we will have less trees so less oxygen since they will be building more structures and factories and plenty of other stuff, that will lead to chopping up plenty of trees.
<span> This is an autosomal dominant disease, the mutant allele was not <span>inherited</span></span>
Im not sure if this will be the answer you teacher is looking for but i think the answer would be
Hair on the head protects scalp from injury and sunlight
Eyelashes and eyebrows protect eyes
Nostril and ear hairs protect from foreign particles
At the end of transcription it's either DNA or RNA try googling it