I think 1) B I don't know what 2 is but it isn't A or B it is between C or D
        
             
        
        
        
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Chemical nutrients and energy tend to flow in the same direction for most of an ecosystem. The big difference is that the chemical nutrients are ultimately recycled in the ecosystem while the energy is ultimately lost from the ecosystem to the universe at large. Energy in any ecosystem ultimately comes from the Sun
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Answer:
because cell B has more energy demand that Cell A so it will have more mitochondria 
 
        
             
        
        
        
Answer:
Animal cells would not have the materials needed to produce energy in cellular respiration.
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Answer:
The Doctrine of Specific Nerve Energies has been and continues to be enormously influential in the physiology, psychology, and philosophy of perception. In simple terms, the Doctrine states that we directly perceive in the first instance the activity of our nerves, rather than properties in the external world.