Coronary arteries supply blood to the heart muscle. Like all other tissues in the body, the heart muscle needs oxygen-rich blood to function. Also, oxygen-depleted blood must be carried away.
Explanation:
The brain, skin and bones are genetically related thru DNA.
Gene expression regulates differation of cells...
Answer: C. higher
Neurological and perceptual speeds are generally higher in individuals with <u>higher</u> intelligence.