There were 16 grasshoppers
I think the independent variable is the temperature, while the dependent variable is the size of the balloon. The factor that is held constant is the amount of air in the balloon. An identical balloon kept at the original temperature. Independent variable in an experiment is the variable that the experiment plans to change while the dependent variable is the variable whose value depends on the independent variable.
You would have .3 of a chromosome for each new cell
I don't see answer choices, but it's either an STD (chlamydia), some non-sexual congenital or idiopathic disorder (endometriosis, pelvic inflammatory disease), or from a previous pelvic surgery.
Hope this helps!