6. which is a characteristic of a mixture?

You didn't give any options so here i go.

a mixture is something that has been mixed or added together, but that does not mean it turns into one substance. For instance, if you see a salad dressing where the oils rose to the top and the herbs fell to the bottom, that is still a mixture. Mixtures can separate but that doesn't mean it's not a mixture anymore.

smooth muscle is composed of involuntary muscles found within the walls of organs and structures such as the esophagus, stomach, intestines, and blood vessels. those muscles push materials like food or blood through organs. unlike skeletal muscle, smooth muscle can never be under your control.