Traces of starch from wild barley (Hordeum) and wheat (Triticum) species were found on a 23,000-year-old seed-grinding stone used by ancient humans in Israel. The method which would have been used to date these ancient starch grains is A. radioactive carbon-14 dating. B. radioactive uranium-235 dating. C. relative dating by comparing rock strata. D. the use of a molecular clock.

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Traces of starch from wild barley (Hordeum) and wheat (Triticum) species were found on a 23,000-year-old seed-grinding stone used by ancient humans in Israel - VCE - SSCE Biology - Question 19 - 2007 - Paper 1

Question 19

Traces of starch from wild barley (Hordeum) and wheat (Triticum) species were found on a 23,000-year-old seed-grinding stone used by ancient humans in Israel. The m... show full transcript

Worked Solution & Example Answer:Traces of starch from wild barley (Hordeum) and wheat (Triticum) species were found on a 23,000-year-old seed-grinding stone used by ancient humans in Israel - VCE - SSCE Biology - Question 19 - 2007 - Paper 1

Step 1

Identify the appropriate dating method:

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Answer

For dating ancient organic materials, particularly those that are around 23,000 years old, the most suitable method is A. radioactive carbon-14 dating. This method is effective for dating specimens up to about 50,000 years old, making it ideal for the starch grains found on the stone.

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