Eukarya. Eukaryotes are the only organisms that have true nuclei and membrane-bound organelles, though some bacteria have a pseudo-nuclei.
The reason why only eukaryotes have true nuclei and membrane-bound organelles is because only eukaryotes have figured out how to create so much energy through the mitochondria, which is required for high compartmentalization. 
        
             
        
        
        
<span>The correct answer is Energy is lost as heat in each stage, causing the amount of energy available to decrease with each stage. This means that eventually energy is bound to run out. Simplest example is a car for example, as long as it works there's less and less fuel, and eventually the energy runs out, or in this case the fuel.</span>
        
                    
             
        
        
        
That is not true because one you eat your body has to work together to digest the food.
        
             
        
        
        
The answer for the given question above would be option C. GRAVITATIONAL FORCE. Based on the given scenario above of a leaf that falls to the ground when Tonya let it go, the force that pulled the leaf to the ground is the gravitational force. This kind of force is a force <span>that attracts any object with mass. Hope this helps.</span>
        
                    
             
        
        
        
The answer is Cytoplasm.
The cytoplasm is describe as that refers to all cellular contents between the cell membrane and nucleus; consists of cytosol and organelles. The plasma membrane consists of structural components called phospholipids, proteins, and carbohydrates. Organelle is commonly referred to as the "powerhouses" of a cell called mitochondria.
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