Answer:d.) protozoa
Explanation:protozoa is a unicellular eukaryotic organism that belongs to kingdom protista. Protozoans depends on other organism for there food because they do not produce there own food. Some protozoa can be parasitic in nature.
Example of protozoa is amoeba.
 
        
                    
             
        
        
        
-the number of protons found in an atom of that element
        
                    
             
        
        
        
By asking it 
Sinply ask
Thats why we were given a mouth
To use it
Or be built different
        
             
        
        
        
Answer:
Most nonrenewable resources are formed from organic carbon material which is heated and compressed over time, changing their form into crude oil or natural gas. The term nonrenewable resource also refers to minerals and metals from the earth, such as gold, silver, and iron.
 
        
             
        
        
        
<span>Natural selection means that the individuals that are best adapted within a population are the ones that will survive.</span>