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a large oxygen-carrying protein (blood pigment).
water-proof, waxy suberin-thickened layer on the radial and transverse cell walls of the...
a species that has been introduced into an area in which it did not previously or naturally...
competition between organisms of different species.
anaerobic respiration that occurs in plants and results in the formation of ethanol and carbon...
the sheet-like muscle found below the ribcage that plays a vital role in breathing.