Answer:our DNA over the years it had formed down to what our parents have
Explanation:
On one side of the grand canyon could be a squirrel with a birth defect witch reproduses with a squirrel with normal genes. But the birth defect is stronger than whatever trait that may be. so the litter of squirrels mostly have this trait. and the cycle contiues
Answer: C. higher
Neurological and perceptual speeds are generally higher in individuals with <u>higher</u> intelligence.
I think the answer is B) plant