- Life Sciences
the second biological classification group (taxon) that is divided into phyla (for animals) or divisions (for plants). There are five or six kingdoms in the main biological classification system.
middle body tissue layer that forms the muscular, circulatory and excretory systems.
the non-living ground tissue with thick-walled cells that gives strength, support and protection...
the kingdom of multicellular organisms that contain chlorophyll and make their own food by...