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(also called radioactive dating) a method of measuring the age of fossils based on how much...
a structure that is used by molluscs for feeding. It is a minutely toothed, chitinous ribbon...
birds without a keel on their breastbones and therefore unable to fly, for example ostriches....
the process whereby useful molecules, such as glucose and amino acids, as well as water and...
the last part of the mammalian large intestine, which stores faeces until it can be expelled...
a method of ordering the age of different fossils, relative to each other, without working out...
a blood vessel that carries blood to the kidney to be filtered.
the protective layer of fibrous connective tissue which surrounds each kidney.
the outer region of the kidney, grainy in appearance, in which the Bowman's capsules of the...