Lymphocytes are a type of white blood cell capable of producing a specific immune response to unique antigens. In thi..
Freshwater ecosystem is comprised of four major constituents, namely elements and compounds, plants, consumers, and deco..
This tutorial recognizes the importance of food as a source of energy that will fuel many biological processes. A good d..
It only takes one biological cell to create an organism. A single cell is able to keep itself functional through its 'mi..
The sea was teeming with life. Eventually, through reproduction and continued variation, fish came about. There are over..
This tutorial looks at the adaptations of freshwater plants for them to thrive in still water habitats. Familiarize your..