3. (03.06 LC) What is a wave?(2 points)
It describes the change in sound in which something goes from high to low.
It describes the flow of heat which flows from an area of high to low temperature.
It describes the movement of air in which something moves in a circular pattern.
It describes the pattern of motion in which something moves back and forth.

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