Biology presents societies with certain limits with which each much deal. For example, biologically a human infant is very dependent for an extended period of time. A culture must delegate the responsibility for the care of new born infants to some one - otherwise the survival of the group is doomed.
Culture can affect the biological order as well.
For example, there definitely is a biological sex drive - but culture has much to say about with whom, when and how one fulfills that drive. There is a tribe in India slowly dying out from excessive inbreeding. A cultural norm has dramatically impacted the biological make-up of the group. Until 200 years ago, all societies were high mortality societies, with life expectancies of about 25 years and infant mortality rates of over 200. In this setting all societies needed to somehow induce the vast majority of females to undergo many pregnancies.