A half life is the amount of time it takes for half of an isotope to decay in a given sample. The half life of carbon 14 (which is an isotope) is 5730 years. Carbon-14 is present in many fossils, hence scientists use this to figure out the age of fossils, this specific usage is called carbon dating.
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Answer:
The excretory system is responsible for eleminating waste products and filtering body fluids.
Answer:
Work on yourself before others
Explanation:
It’s the transport vesicles
