dietary supplements of live bacteria that are good for human health.
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Type: Glossary
(also called autotrophic organisms) organisms that produce their own organic food, mainly...
Type: Glossary
the very cold zone in an ocean, dam or a lake, located below the range of effective light...
Type: Glossary
unicellular organisms that do not have a proper nucleus or membrane bound organelles.
Type: Glossary
an organic compound that always contains the elements carbon, hydrogen, oxygen and nitrogen and...
Type: Glossary
unicellular organisms that contain a true nucleus and membrane bound organelles. All protists...
Type: Glossary
coiled nephron tubule which extends from Bowman's capsule to the loop of Henlé.
Type: Glossary
blood vessels that transport deoxygenated blood from the heart to the lungs.