Answer:
True and The respiratory system is a biological system consisting of specific organs and structures used for gas exchange in animals and plants
 
        
                    
             
        
        
        
Answer: 25%?
Explanation: theres 4 children and the moms a carrier so 1/4 of 100 is 25%
 
        
             
        
        
        
The carbon cycle moves through virtually all of the earth's spheres.
<h3>Carbon cycle</h3>
There are 4 majors spheres of the earth:
- Atmosphere
- Geosphere or Lithosphere
- Biosphere
- Hydrosphere
The carbon cycle moves through the air (atmosphere), oceans (hydrosphere), organisms (biosphere), and the soil (geosphere).
Thus, the carbon cycle moves through all the spheres of the earth.
More on the carbon cycle can be found here: brainly.com/question/1627609
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<span>In the reaction that builds a fat, hydroxil groups react with carboxyl groups. Both hydroxil and carboxyl are </span><span>functional </span>groups<span> in biological molecules. The h</span>ydroxil group is group of atoms found in organic compounds, expressed with the formula OH. The carboxyl group are found in acids.