Option a is the correct answer
        
             
        
        
        
Answer:
B) plants get the energy they need for photosynthesis from sunlight
Explanation:
 
        
             
        
        
        
Answer:
Bagged Fertilizers
Explanation:
A dead animal will decompose, along w/ coffee bean shells and seaweed. Fertilizers, which are made of chemicals, can not. Another way to think about it is u can eat anything but the fertilizers :-)
 
        
             
        
        
        
Answer:
A model in which oak has a positive transition rate to the invasive and the invasive has a positive transition to oak.
Explanation:
An invasive species is the one which is non-native to the given ecosystem. Its growth hampers balanced ecological parameters and disturbs food web as well as normal flora.The overall effect of invasive species is decreasing biodiversity in selected ecosystem. As the ecologist needs to understand effect of this invasive species, firstly it is important to understand the transition of oak tress to invasive form. The transition rate is one of the deciding factor to introduce diversity in ecosystem. Also if the invasive form has the ability to revert back to original oak tress it would restore the original ecosystem. Thus a model in which oak has a positive transition rate to invasive and the invasive has a position transition to oak can be selected for the analysis. In other models, the final trnasition to grass would introduce lot of biodiversity in selected ecosystem which would be of little importance to understand transition rate.
 
        
             
        
        
        
Answer:
B is the answer of this question