Lump Definition and Examples - Biology Online Dictionary

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

This tutorial describes the independent assortment of chromosomes and crossing over as important events in meiosis. Read..

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

This lesson looks at population attributes, regulation, and growth. It also covers population genetics, particularly gen..

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

Stems primarily provide plants structural support. This tutorial includes lectures on the external form of a woody twig ..

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