19. Let's imagine that you want to create a catdog, the perfect mix of a pet. You take the gametes (egg or sperm) and attempt to combine them in the lab. You are unsuccessful
in creating your new species. Explain why it did not work.

it means

miss jennifer is buying pencils in packs of 12, notebooks in packs of 16, and red pens in boxes of 20. she needs to have the same number of pencils, notebooks, and red pens. how many packs of each type should she buy?

answer mine : )

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

yes, because even though a theory has a  lot of evidence to support it, it is not always true