Answer:
Because they lose most of the energy as heat when they perform metabolic activities
Explanation:
Cells of all living organisms require energy in form of ATP to perform their cellular functions. In an ecosystem, organisms obtain this energy by feeding on one another. However, these energy transfer starts from organisms capable of using sunlight called PRODUCERS e.g plants. 
Herbivores, which are PRIMARY CONSUMERS get their energy by feeding on these plants. However, according to the PYRAMID OF ENERGY, which represents the flow of energy in an ecosystem, only a few portion of the energy (about 10%) derived by plants from the sun gets transferred to herbivores. This is because most of the energy (about 90%) is lost as heat when the plants undergo metabolic activities.
 
        
                    
             
        
        
        
Answer:
<em>The correct option is D) A species that does not normally live in an area.</em>
Explanation:
Non- native species can be described as a species which do not live in a particular habitat but are introduced into the habitat due to certain reasons or causes. The introduction of non-native species might badly affect the stability of an area. The non-native species might fight with the native species for resources like food, water, shelter etc. Sometimes, the introduction of non-native species is done so that the species can feed on any other species which is not beneficial for that environment. 
 
        
             
        
        
        
The correct answer is C cause mutations changes DNA
        
             
        
        
        
<span>t is part of the region of West Greece and is situated in the northwestern part of the Peloponnese peninsula. The capital is Patras </span>
        
             
        
        
        
Why did you write the last part I don’t get it I’m