as a biologist. i have found their answers to the simple questions of life.

its in the study guide.

24) Why do we seek mates, love our children and nurture their development?
a) we inherited such traits from ancestors who successfully reproduced, and such traits were helpful in ensuring their lifetime inclusive fitness

22) Why do we grow old and die?
c) because selection maximizes fitness, not longevity

21) Who are you and why are you here?
a) I am one of about 6 billion Homo sapiens, a hominid primate, here because my ancestors reproduced successfully