The answer is c. Limestone, Hope this helped!
 
        
                    
             
        
        
        
1) control - does not get independent variable 2) experimental - gets the independent variable 3) independent variable - is being changed/controlled 4) dependent - is being tested
        
             
        
        
        
<u>Answer:</u>
<em>The biologists clarify these similarities as a homologous pair. This is based on the principle of convergent evolution.</em>
<u>Explanation:</u>
<em>Convergent evolution</em> is understood by the phenomenon of development of similar organs in different species in different period. Those<em> homologous pair </em>have same structure but can have different function in the different <em>species of organism. </em>
The bone of human arms, wings of the bat and dolphin flippers contain many of same bones which have developed from the same embryo tissue but the function for each is <em>different in different species.</em>
 
        
             
        
        
        
5 atm pressure must be applied to compress the gas to a volume of only 150.0 ml.
<h3>Given</h3>
Mass of oxygen at room temperature =500.0 ml
Volume of pressure = 50 atm pressure.
The gas to a volume = 150.0 ml
<h3>Explanation</h3>
The volume decreases by the factor = 500.0 mL / 150.0 mL
                                                              = 10 / 3
The pressure of the gas increased by a factor of 10/3 , which would make its final value equal to

           = 5.00 atm
So, 5 atm pressure must be applied to compress the gas to a volume of only 150.0 ml.
Learn more about mass of oxygen here:
brainly.com/question/12902286
#SPJ4