I’m pretty sure they included more than one independent variable.
Do you have any answer choices??

Which of the following is the correct way to use ice when treating an injury?
Answer:
D.
Apply ice directly to injured area is The Correct Answer!
Hope this Helps!!!
-xXxAnimexXx-
<span>Which of these is a malignant disorder of lymphatic tissue characterized by progressive enlargement of the lymph nodes?
A. Hodgkin’s disease</span>
Answer: Chemical level
There are six levels of structural organization of a human body. Of these, the chemical level is the lowest in the hierarchy which includes atoms and molecules that are essential in maintaining life.
Atom is the smallest part of elements such as carbon, hydrogen, oxygen, nitrogen, calcium, potassium and sodium. Molecules are the chemical combination of two or more atoms.