The first one with the boxing crab and anemone is mutualism. 
The second one with the dog and flea is parasitism.
        
                    
             
        
        
        
it would be kind of an advantage as they breathe air and just stay on land and to get food it can go into the water
 
        
             
        
        
        
Answer:
a forest of trees and undergrowth plants, inhabited by animals and rooted in soil containing bacteria and fungi, constitutes a biological community.
Explanation:
 
        
                    
             
        
        
        
The complete question is as follows:
If a researcher only wanted to examine the relationship between exercise and grade point average, _________ would be used to test the variables.
A.  correlation analysis
B.  regression
C.  hypothesis
D.  central tendency measures
Answer:
The correct answer would be - A. correlation analysis.
Explanation:
To find the relationship between two variables the correlation analysis is the statistical method is used. It is used to find the what and how the one variable is related to the other variable in this method.
It is used to evaluate the relationship between any two quantitative variables.To examine the relationship between exercise and grade point average,b this method would be best as it also shows how strong is the relationship of variables.
 
        
             
        
        
        
Answer:
D. Some cells can support life independently. Other cells support life collectively
Explanation:
Unicellular organisms are able to support their own life without the support of more than 1 cell. While some organisms needs multiple cells to function.