A: Skin. heart is a organ but it's sorta small. Same with liver.  Skeleton is not a organ
        
                    
             
        
        
        
<em>At the beginning of cellular respiration, energy is stored in the bonds of</em> glucose <em>molecules.
</em>
<em>At the end of cellular respiration, energy is stored in the bonds of</em> ATP <em>molecules.
</em>
 
        
             
        
        
        
Answer:
Hey mate......
Explanation:
This is ur answer.....
<em>Technologies used to explore outer space and the ocean include submersibles, remotely operated vehicles (ROVs), satellites, rovers, diving/scuba gear, buoys, mega corers, water column samplers, and sonar for mapping.</em>
Hope it helps! 
Brainliest plz.....
Follow me! ;)
 
        
                    
             
        
        
        
Answer:
Plasma. The liquid component of blood is called plasma, a mixture of water, sugar, fat, protein, and salts.
Explanation:
 
        
             
        
        
        
<h3><u>Answer;</u></h3>
peptidoglycan 
The molecular basis of the Gram stain is the amount of<u> peptidoglycan</u> in the bacterial cell wall.
<h3><u>Explanation</u>;</h3>
- Gram stain is differential stain that is very useful for identifying and classifying bacteria as either gram negative or gram positive.
- Gram negative are those that decolorize easily, such as E. coli, while Gram positive are those that retain the primary stain and do not decolorize easily. 
- The result depends on the bacteria cell wall structure, the cell wall of a Gram-negative bacterium is composed of 20 percent or less of peptidoglycan.