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(also called radioactive dating) a method of measuring the age of fossils based on how much radioactive decay has taken place in the radioactive elements or isotopes that occur naturally in fossils
coiled nephron tubule which extends from Bowman's capsule to the loop of Henlé.
a prolonged period of low rainfall which has a negative effect on plant, animal and human life...
drugs that are used to suppress the immune system to prevent tissue rejection.
remove starch from the leaves of a plant by preventing photosynthesis from occurring (for a few...