Some traits such as the color of your eyes and the shape of your nose are controlled by and may affect your health and well-being

Answer

Genes

Explanation:

Though heredity (passing of traits from parents to offspring), genes control various physical traits -- eye and hair color, amount of melanin in your skin, the shape of your nose or chin and others traits.  There are also genes that, if present, can cause the development of a genetic disease (sickle cell, downs syndrome, Tay Sachs, and others).  Scientists have also learned that there are other potential health consequences of genes.  For example, they have discovered a breast cancer gene.  This means that if the gene is present, there is a greater propensity for the development of the disease.

this is true my friend.        

the aorta is the large artery leaving the heart branches into smaller arteries, which eventually branch into capillaries.the arteries carry oxygen and nutrients away from your heart, to your body's tissues. the capillaries are small, thin blood vessels that connect the arteries and the veins. the statement that arteries carry oxygen-rich blood to capillaries is true. veins on the other hand are blood vessels that take oxygen-poor blood back to the heart.