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animals that live socially or in colonies and perform certain tasks for the good of the colony as a whole.
the inner body tissue layer that forms the gut and other internal organs.
pigments that occur in the brightly coloured, yellow, orange or red parts of the plant, such as...
small ball of chewed food mixed with saliva that is formed in the mouth, which is swallowed.
the use of modern technology to manipulate living organisms to obtain products from them that...