Metazoan

Animals; have differentiated tissue...

This tutorial describes the different types and causes of brain damage. Find out how genetics, physical injury, lack of ..

Homeostasis is essential to maintain conditions within the tolerable limits. Otherwise, the body will fail to function p..

The water cycle (also referred to as the hydrological cycle) is a system of continuous transfer of water from the air, s..

This tutorial noted some of the physical and chemical factors that provide the framework of a running water community in..

The gastrointestinal system breaks down particles of ingested food into molecular forms by enzymes through digestion and..

Certain species are capable of expressing characteristics indicative of the state of the ecosystem they occupy. They are..

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