Testa

Bryophytes (nonvascular plants) are a plant group characterized by lacking vascular tissues. They include the mosses, th..

Hormones are essential in the regulation of the activity of the various biological systems of the human body. The ineffi..

Meet some of New Zealand's unique fauna, including endemic insects, frogs, reptiles, birds, and mammals, and investigate..

In plants, growth occurs in meristems, which are the site of repeated cell division of unspecialized cells. These cells ..

Plants and animals need elements, such as nitrogen, phosphorus, potassium, and magnesium for proper growth and developme..

Osmoregulation is the regulation of water concentrations in the bloodstream, effectively controlling the amount of water..

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