Fill in the Blanks ORGANSOnline version Complete by Dante Aguilar Tormo 1 organ systems organs myocardium tissue restricted nerves analogue tissue organisms vessels to origins organ heart sporadic same organisms organelle plants The organs are composed of main tissue , parenchyma , and " " tissues , stroma . The main is that wich is unique for the specific , such as , the , the main of the , while sporadic tissues include the , blood , and connective tissues . The main tissues that make up an tend to have common embryologic , such as arising from the germ layer . Functionally related often cooperate form whole organ . Organs exist in all higher biological , in particular they are not to animals , but can also be identified in . In single - cell like bacteria , the functional of an organ is called .
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