For a monohybrid cross, you are crossing two alleles with two alleles. in a dihybrid cross, you are crossing four alleles with four alleles.
        
             
        
        
        
The Hardy – Weinberg principle
has seven conditions that should occur in the evolution of the population. One
is when mutation does not happen. Two, is when natural selection is not
occurring. Three, if the population is infinitely large. Four, if all the
members of the population produce offspring. 
Five, sexual intercourse is random. Six, the population will produce the
same number of offspring. And lastly, the population does not migrate from one
place into the other. The thing that would disrupt the genetic equilibrium is
the mutation.
 
        
             
        
        
        
Answer:
A and B: Presence of sugar
B, C, and D: Water temperature
B and E: type of respiration 
Explanation: