Answer:
a microscopic organism, especially a bacterium, virus, or fungus.
Explanation:
 
        
             
        
        
        
<span>The main difference of renewable and non-renewable resources lies in the capacity of
the environment to replenish itself. Renewable resources are resources that can
be easily replenished by the environment over a short period of time, while
non-renewable resources take more time. <span>
Examples
of renewable resources are solar energy, harnessing the sun's power that shines
day to day. Wind energy that exists naturally is also a renewable source.
Geothermal energy, heat coming from the center of the Earth, and Biofuels,
fuels made from living organisms, are all renewable energy. 
<span>Non-renewable
energy resources are the fuels we use in our cars, minerals from the soil,
coal, among others are supplies that also come from Earth. These are all materials that might take a long time (probably millions of years)
to be fully restored. </span>
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Answer:
HE IMPROVED THE WORLD BY GIVING SOMTHING THAT IT DID NOT HAVVE 
Explanation:
ENJOY :)
 
        
             
        
        
        
<u>Answer</u>:  Cystic fibrosis is a genetic disorder that causes thick mucus secretions.
<u>Explanation</u>:
- <em>Cystic fibrosis</em> is a genetic disorder caused by mutations in a gene that makes a protein called CFTR (cystic fibrosis transmembrane regulator).
-  The CFTR protein normally functions as a channel for transport of chloride ions in cells responsible for mucus production.
-  A person suffering from cystic fibrosis produces abnormal CFTR protein or no CFTR protein at all.
- This is the  reason that thick, sticky mucus is produced instead of the thin, watery kind.
 
        
                    
             
        
        
        
Arthritis is a term that is initially used to describe inflammation of the joints. Cartilage is a type of body tissue that keeps joints moving freely and functional well, and when they begin to break down or get inflamed, the joints don’t work as well, and it becomes painful to move