Option 2. Because in the living things in an ecosystem it HAS to have consumers and decomposers. The other answer choices don’t have them so that’s the answer. Hope this helped and if it did then please give a thank you or even brainliest
        
                    
             
        
        
        
Cells need oxygen to release energy from food. This process is called aerobic respiration.Metabolism<span> is a word for all the chemical reactions in a living organism. The energy released from food by respiration is important to the metabolism of all cells.</span>
        
             
        
        
        
Answer:
 A similarity between alcohol fermentation and aerobic respiration is that both started with glycolysis.
Explanation:
Alcohol fermentation is anaerobic process which involve the conversion of glucose into carbon dioxide and alcohol in the presence of yeast.
The first step is glycolysis which is same in both alcohol fermentation and aerobic respiration
Both produces the ATP. The number of ATP produced by alcohol fermentation are 2 while aerobic respiration produces 38 ATP.
Aerobic respiration
It is the breakdown of glucose molecule in the presence of oxygen to yield large amount of energy. Water and carbon dioxide are also produced as a byproduct.
Glucose + oxygen → carbon dioxide + water + 38ATP
 
        
                    
             
        
        
        
Answer:
only animal I believe sorry if wrong ;)
 
        
             
        
        
        
Answer:
1.transports oxygen, nutrients , hormones to the cells and removes metabolic waste
2. breaks down food into nutrients
3. to protect the body from microbes and chemicals
4. responsible for the control and communication between body parts.
5. responsible for taking in oxygen and expelling CO2
6. produces, stores and eliminates urine the fluid waste the kidneys filter from the blood.
7. (#1High blood pressure)(vagus nerve damage slows digestion)(hbp weakens immune system)(nerve damage from high glucose levels)(lung function decrease as glucose levels rise)(promote bacteria growth causing uti) 
8..........okay I got too lazy to do the rest....just search em up on Google.