Metazoan

Animals; have differentiated tissue...

Leaves are the major photosynthetic organ of a plant. Apart from that, they are also crucial to water movement. In this ..

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

Different pregnancy and birth control and contraception strategies are described. Read this tutorial to learn each of th..

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

Plants are responsible for incredible feats of molecular transformation. Plant processes, such as photosynthesis, photop..

Cell respiration is the process of creating ATP. It is "respiration" because it utilizes oxygen. Know the different stag..

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