The answer is "Handwashing"
Hope this helps!
-Payshence xoxo
        
             
        
        
        
Answer is 55%.
Blood is fluid connective tissue that consists of two main components, plasma and formed element. Blood plasma is a clear extracellular fluid, which is a mixture of proteins, enzymes, nutrients, wastes, hormones and gases. Formed elements are made up of the blood cells (red blood cells and white blood cells) and platelets. All formed elements are cells except for the platelets, which are tiny fragments of bone marrow cells.
The formed elements can be separated from plasma by centrifuge. On separation of blood components, it is evident that formed elements make up 45% of total blood volume while the plasma makes up 55% of the total volume.
 
        
                    
             
        
        
        
Answer:
 Production of ATP via oxidative phosphorylation require an intact mitochondrial membrane because of the creation of an electrical potential.
Explanation:
Oxidative phosphorylation is a method, in which energy is converted into ATP by a sequence of protein complexes located inside the mitochondrial inner membrane. Production of ATP through oxidative phosphorylation requires an intact mitochondrial membrane because a change in electrical charge between both sides of the inner mitochondrial membrane results in the creation of an electrical potential. The protons have accumulated on the exterior of the mitochondria, making it positive (H), while the protons have been lost within, making it negative. On each surface of the membrane, a differential or gradient in chemical concentration has been formed. The cell transmits the energy stored in the decreased NADH and FADH via the electrochemical gradient. 
You can also get help from the following answer:
brainly.com/question/12322994
#SPJ4
 
        
             
        
        
        
Since a fox has a backbone and all to be a vertebrate you must have a backbone then a fox is a vertebrate.
Hope this helps!
Can u plz mark me as brainliest? I really need it!