Following nine months inside the mother's womb is the birth of the baby. Know the different stages of the birthing proce..
Freshwater ecology focuses on the relations of aquatic organisms to their freshwater habitats. There are two forms of co..
Developmental biology is a biological science that is primarily concerned with how a living thing grows and attains matu..
Learn how the way genes control and determine every aspect of the body. This lesson uses lac operon as an example. ..
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Meet the colorful takahē, an extremely rare flightless bird. Find out more about its unique features and why they matte..
The human respiratory system is an efficient system of inspiring and expiring respiratory gases. This tutorial provides ..