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The process of photosynthesis
Photosynthesis – Photolysis and Carbon Fixation

Photosynthesis is the process that plants undertake to create organic materials from carbon dioxide and water, with the ..

Human Nervous System
The Human Nervous System

The nervous system is essentially a biological information highway. This tutorial gives an overview of the nervous syste..

Circulation
Circulation

The circulatory system is key to the transport of vital biomolecules and nutrients throughout the body. Learn about the ..

Freshwater lake ecosystem
Freshwater Producers and Consumers

Freshwater ecosystem is comprised of four major constituents, namely elements and compounds, plants, consumers, and deco..

Early Mammals on Earth
Early Mammals on Earth

The Earth's ecosphere was rapidly changing and throwing up a wide range of ecological niches that new adaptive organisms..

Plant biology
Plant Biology

Plantlife can be studied at a variety of levels, from the molecular, genetic and biochemical level through organelles, c..