are present at low concentrations in the blood but are needed at high concentrations by a variety of cells in your body. What type of transport is used to concentrate Ca2 in the cells that need it

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

copper and glass have high electrical conductivity