2a. Genetic differences probably account for part of the difference between people who age slowly an

2a. Genetic differences probably account for
part of the difference between people who age slowly and gracefully and others
who grow old more rapidly and die at a younger age. Given that the genes
controlling old age have their onset long after people have stopped having
children, how could evolution have any effect on such genes?

2b. When monkeys with Kluver-Bucy syndrome pick up lighted matches and snakes,
we do not know whether they are displaying an emotional deficit or an inability
to identify the object. What kind of research method might help answer this
question?Total needs to be 250+ words