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(also called autotrophic organisms) organisms that produce their own organic food, mainly carbohydrates, from inorganic nutrients.
a substance found in certain fatty foods or manufactured in the liver. High levels of...
stage of photosynthesis that does not require light energy to occur.
water-proof, waxy suberin-thickened layer on the radial and transverse cell walls of the...
the tube that carries urine from the nephrons to the ureter via the renal pelvis.
(also called an extinction event) the sudden dying out of large number of species over a short...