Roberto examines two molecular models. He sees that the atoms are the same in each model and are attached in the same order in each model. However, he cannot make the models appear the same without breaking a double bond.

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