Answer: Mutualism
Explanation: The definition of mutualism states " interaction between two or more species where each species has a benefit". The bird is getting food from the insects and the horse is getting the insects removed. Both are benefited. 
 
        
             
        
        
        
There will be a passive transport or usage of energy
        
             
        
        
        
Both of the parents are heterozygous
        
             
        
        
        
Consumers An organism that gets energy by eating other organisms. All animals are consumers. They must take in food because they cannot make their own. Decomposer an organism that gets energy by feeding on dead organisms and wasters.
        
             
        
        
        
Answer:
The reduction of the oxidized ubiquinone led to the intake of two electrons as well as two protons from water molecules, as shown in Figure 14-19. The protons are further liberated during oxidation. If there is oxidation at one side and reduction at second side of the membrane,  There is the movement of one proton for every electron that moves through the membrane. Thus, the movement of electron by the oxidized ubiquinone influences the production of H+ gradient.
Explanation:
The reduction of the oxidized ubiquinone led to the intake of two electrons as well as two protons from water molecules, as shown in Figure 14-19. The protons are further liberated during oxidation. If there is oxidation at one side and reduction at the second side of the membrane,  There is the movement of one proton for every electron that moves through the membrane. Thus, the movement of an electron by the oxidized ubiquinone influences the production of the H+ gradient.