Chapter 35, Problem 1WIO

Summary Introduction

To explain:

The tradeoffs in the two types of reproductive strategies and the forces that limit the stage of development at which the birth of humans take place.

Concept introduction:

Parturition is the process of giving birth to the new young ones. Parturition is of three types, namely oviparous, ovoviviparous and viviparous. In oviparous, the young ones are born in eggs which are hatched after the development of offspring. In viviparous, the live young ones are formed. In ovoviviparous, the young ones are produced in egg, but the eggs remain inside the female body. In viviparous organisms, some of the species produce offspring which can move freely immediately after birth.