Energetic

Autotrophs flourished, absorbing carbon and light. Soon after, primitive life forms that could assimilate oxygen thrived..

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

Geological periods is a study guide that cites the different geological periods on Earth's timeline. Each has a brief ov..

A balanced diet is essential to a healthy organism. Insufficiency or too much of a particular element or compound, such ..

Mammals are a diverse group of organisms, where most of them develop their offspring within the uterus of the mother. Ov..

Organisms employ different strategies to boost its defenses against antigens. Humans have an immune system to combat pat..

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