Emphraxis

This tutorial looks at some of the communities in freshwater lentic habitats. For instance, symbiosis occurs in a commun..

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

The blood sugar level is regulated by two hormones. The mechanism behind this type of negative feedback control is descr..

New Zealand is known for its unique biodiversity, caused by its remarkable geography and geologic history. Breaking away..

Meet the colorful takahē, an extremely rare flightless bird. Find out more about its unique features and why they matte..

Multicellular organisms evolved. The first ones were likely in the form of sponges. Multicellularity led to the evolutio..

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