Answer and Explanation: The excretory system helps the respiratory system by getting rid of carbon dioxide. The respiratory system helps the excretory system by getting rid of CO2 from the body. They both need each other and if one or the other did not exist, we might've not been able to survive. Tis demonstrates how vital they are for the human body. 
 
        
             
        
        
        
Answer:
The internal membrane known as the Cristae is collapsed. The folds of the inward layer or the Cristae give an expansion in the Surface Territory which gives the Mitochondrion more areas for ATP( the vitality cash) creation to happen
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Answer:
Answer. The more an experiment is repeated, with the same outcomes, the more biased it becomes
Explanation:
 
        
                    
             
        
        
        
Answer:
External fertilization usually occurs in aquatic environments where both eggs and sperm are released into the water Most external fertilization happens during the process of spawning where one or several females release their eggs and the male(s) release sperm in the same area, at the same time.
Typically, frogs lay eggs. This process usually occurs through external fertilization, where the female releases her eggs from her body into water. Then, the male releases his sperm to fertilize them In this case, the eggs are fertilized inside the female's body before they are released.
        
             
        
        
        
Less physical waste, cleaner energy, less environmental effects, list goes on.
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