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parenchyma cells with large air spaces to facilitate floating.
(also called radioactive dating) a method of measuring the age of fossils based on how much...
molecule that forms when carbon dioxide attaches itself to the amino group of a haemoglobin...
compounds such as lipids, carbohydrates, proteins, nucleic acids, vitamins, petrochemicals and...
tough cartilage that acts as a shock absorber between vertebrae and at the ends of bones in ball...