A Part of the Ocean where sunlight can Penetrate and where most Ocean Organisms Dwell
Dictionary > Photic Zone
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Photic Zone
A Part of the Ocean where sunlight can Penetrate and where most Ocean Organisms Dwell..
Plant Meristems and Growth
In plants, growth occurs in meristems, which are the site of repeated cell division of unspecialized cells. These cells ..
Sigmund Freud and Carl Gustav Jung
In this tutorial, the works of Carl Gustav Jung and Sigmund Freud are described. Both of them actively pursued the way h..
Takahē (Porphyrio hochstetteri)
Meet the colorful takahē, an extremely rare flightless bird. Find out more about its unique features and why they matte..
Ecosystem Succession
If the balance of nature is left untouched, landscapes can change dramatically over time. A previous ecosystem is supers..
Freshwater Lentic Communities & Animals
This tutorial looks at some of the communities in freshwater lentic habitats. For instance, symbiosis occurs in a commun..
Geological Periods
Geological periods is a study guide that cites the different geological periods on Earth's timeline. Each has a brief ov..
