The Dead Sea is a body of salt water that contains so much dissolved salt that it allows people to float easily in it. Large salt deposits are even found along the shoreline. What type of solution is the Dead Sea?

d. organisms have cells with different shapes and functions.

the answer is 100% density i've answered this question before and done the quiz myself.

i took a test for bio that had this question and these were the correct answers, not sure if this is any now lol

the nervous system and the muscular system work together.  

sweat reaches the surface of the skin and evaporates into the air.

muscles underneath the skin relax, causing hair on the skin to lay flat.