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Dinosaurs represented a major turn in the evolutionary development of organisms on Earth. The first dinosaurs were presu..
This tutorial elaborates on the effect of light on plant growth. It describes how different plants require different amo..
This tutorial looks at some of the communities in freshwater lentic habitats. For instance, symbiosis occurs in a commun..
This lesson is about the methods used for ecological research, such as quadrat and transect sampling, canopy fogging, an..
Ferns and their relatives are vascular plants, meaning they have xylem and phloem tissues. Because of the presence of va..