Answer:
1. codominance Both members of an allelic pair contribute to phenotype producing a mixture of phenotypic traits
 2 . Rh factor: An inherited protein found on the surface of the red blood cell membrane
3 . hemophilia: A hereditary condition for bleeding due to the inability to clot properly 
4 . holandric gene: A gene located on the Y chromosome in XY species 
Explanation:
Codominance occur when a pure breeding White flower crosses with a pure breeding Red flower and gives PINK offspring
Rhesus Factor is an antigen that appears on the surface of red blood cells. it is an important factor to consider during blood transfusion.
Hemophilia is a sex-linked condition where the sufferer is unable to have a blood clot.
Holandric gene can ONLY be passed from males (carriers of XY chromosomes) to their sons
 
        
                    
             
        
        
        
Answer:
Option B 
Explanation:
Option D is incorrect, as increased photosynthesis would increase oxygen supply present, not carbon dioxide supply. 
Option C is incorrect, as increased decomposition would increase carbon dioxide released and oxygen present is reduced, not increased. 
Option A is unlikely as if this were the case, increased oxygen levels would enable bluegill fish to survive as well. 
 
        
             
        
        
        
I believe it’s supposed to be in the summer.
        
                    
             
        
        
        
The answer is A. Putting the aquarium in the dark means that
the aquatic plants will not be able to photosynthesize.  The process of photosynthesis produces oxygen
as a by-product. The oxygen is used by the fishes in respiration and release
carbon dioxide. The carbon dioxide is used by the aquatic plants in photosynthesis.