Trilobite fossils have been found in rock that is 521 million years old. They have ako been found in rocks that are more than 252 million years old. Trilobite fossils have not been found in younger or older rocks. What does this tell you? Marte the one best answer.) A Trilobites became extinct 252 million years ago.

B Trilobites became extinct 521 million years ago.

C Trilobite lived on Earth for 252 million yars,

D Trilobites lived on Earth more than 521 million years

pls what literal is it ​

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Explanation:

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b.have there own function.

a researcher conducts an experiment on the secretion of a particular hormone in mice. scientists inject mice with a substance that stimulates the production of the hormone. the scientists then test the levels of hormones produced by the mice. the tool used to measure the hormones consistently detects the levels at 10 points lower than the actual hormone levels in the mice. this tool makes measurements, but the measurements aren't .

explanation:

no u