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pigments that occur in the brightly coloured, yellow, orange or red parts of the plant, such as leaves, flowers and fruit.
an organism that helps to spread a disease, but is not infected with the disease.
a mixture of enzymes and other substances secreted by the exocrine cells of the pancreas.
having similar parts regularly arranged around a central axis.
when an animal accumulates body fat or stores food resources during warmer periods and becomes...