Answer:
the last one is the right answer I believe
<span>Selective breeding is when humans take certain organisms and breed them in order to produce desirable or beneficial characteristics (phenotypes).</span>
Answer: Upper motor neurons of the corticospinal tract.
Explanation:
The items that can contribute to heart disease is C. Nitrogen oxides and carbon monoxide. These are the chemicals that contribute to pollution. Carbon monoxide is the product from a combustion that can affect our respiratory system whenever we inhale this gaseous chemical. And nitrogen oxides can affect and penetrate areas of the body when inhaled in which our respiratory organs may be affected by diseases because of this chemical.
