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 looks at sex determination via the sex chromosomes, X and Y. Read it to get more info on X and Y chromosom..
The water cycle (also referred to as the hydrological cycle) is a system of continuous transfer of water from the air, s..
It only takes one biological cell to create an organism. A single cell is able to keep itself functional through its 'mi..
Freshwater ecology focuses on the relations of aquatic organisms to their freshwater habitats. There are two forms of co..
Hormones are produced in the endocrine glands of animals. The pituitary gland and hypothalamus are the most impor..
