The independent variable is a variable that can be stood alone. So therefore, the independent variable would be how long it takes to parachute.
I believe the answer to 11 is that multicellular organisms are made up of multiple cells and unicellular organisms are made up of one cell.
Hi lovely,
The answer you're looking for would be Biosphere.
I want to say it is going to be Carbohydrates. Sometimes bing works if you look it up and click on the yahoo answers link. Just a hint to help you out some! :) Have a good day! :)