Statements and classify them as being characteristic of RBC, WBC, PLASMA, or PLATELETS More than 5 million in a drop of blood.
Can last 1-5 days or years.
Are involved in the clotting process.
Cell fragments that have no nuclei
Contain hemoglobin that binds oxygen and carbon dioxide to transport.
Can be granulocytes or agranulocytes.
Makes up 55% of blood volume
Can last 5-9 days.
Contains dissolved minerals, proteins and ions.

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:

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the answer is true when observing or determining population size, a direct observation is use, in which each organism is counted in a population or in an area. one benefit of this measure is that you get the exact population count but it will take a long time to  determine  the  size  of a  population.

. the sierra madre fault zone of southern california

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