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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This tutorial elaborates on how the nervous system works, particularly at the tissue level of the brain. There are three..
Plants need to regulate water in order to stay upright and structurally stable. Find out the different evolutionary adap..
This lesson explores the impact of biosecurity threats, and why they need to be identified and managed. Examples to incl..
The water cycle (also referred to as the hydrological cycle) is a system of continuous transfer of water from the air, s..
A running water environment offers numerous microhabitats for many types of animals. Similar to plants, animals in lotic..