Cephalad Definition and Examples - Biology Online Dictionary

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

Hormones are chemical messengers produced by specialized glands and they were produced by switching on the genes designe..

Obtaining air outside an aquatic environment required species to acquire suitable adaptations, and this was the case of ..

This tutorial recognizes the importance of food as a source of energy that will fuel many biological processes. A good d..

Lotic communities have conditions that are rather harsh for typical plants. Thus, the diversity of plant species in loti..

Proteins have a crucial role in various biological activities. Get to know how proteins are able to perform as enzymes, ..

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