Abstract
Living organisms in which:-
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1.
The cell or cells usually do not possess plastids and are unable to synthesise organic compounds from inorganic constituents.
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2.
Feeding is heterotrophic, either holozoic or saprozoic.
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3.
The metabolism of the body results in the production of toxic nitrogenous waste which requires to be excreted.
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4.
There is no cellulose cell wall.
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© 1975 J. E. Webb, J. A. Wallwork, J. H. Elgood
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Webb, J.E., Wallwork, J.A., Elgood, J.H. (1975). Protista. In: Guide to INVERTEBRATE ANIMALS. Palgrave, London. https://doi.org/10.1007/978-1-349-15599-6_2
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DOI: https://doi.org/10.1007/978-1-349-15599-6_2
Publisher Name: Palgrave, London
Print ISBN: 978-0-333-19007-4
Online ISBN: 978-1-349-15599-6
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