Which of the following best describes an irregular galaxy? a group of stars that serve as a quick reference to different parts of the sky several billion stars arranged in a shape that has uneven edges billions of planets arranged in an irregular pattern with a flattened core millions of stars arranged in the shape of a disk with spiraling arms

Several billion stars that are arranged in a shape that has uneven edges.

Explanation:

The reason is because irregular galaxies do not look like regular shaped galaxies like elliptical galaxies and spiral galaxies because all of their stars are shaped in an irregular shape or a shape that has not been seen before by the Hubble Space telescope.

a covalent bond, specfically triple 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