A crucial characteristic of turbines in tidal generators is that . they must adjust to changing water depth the blades should turn in two directions they must be able to float they must withstand waves

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

you should wear a lead protective shield when having teeth x-rays

hope i

-lavira : )