A running water environment offers numerous microhabitats for many types of animals. Similar to plants, animals in lotic..
This tutorial elaborates on the physical development of humans, particularly from puberty to adulthood. Read this tutori..
Earth was created around 4.5 billion years ago and life began not long after. Primitive life likely possessed the elemen..
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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Different mental disorders are described here. Read this tutorial to get an overview of schizophrenia, affective mood di..
This tutorial elaborates on how the nervous system works, particularly at the tissue level of the brain. There are three..