Answer:
Your bloodstream.
Explanation:
The cells in your pancreas produce insulin which needs to be sent to the rest of your  body to tell your cells to take in glucose (sugar) for energy. In order to get sent out of  the pancreas' cells, the insulin needs to go through your bloodstream.
 
        
             
        
        
        
Nature, in the broadest sense, is the natural, physical, material world or universe. "Nature" can refer to the phenomena of the physical world, and also to life in general. The study of nature is a large, if not the only, part of science. Although humans are part of nature, human activity is often understood as a separate category from other natural phenomena.[1]
        
             
        
        
        
Answer:
Pangenesis
Explanation:
The theory of 'pangenesis' was proposed by Darwin to explain the process of inheritance of genetic traits from one generation to next. According to this theory, gemmules are the tiny particles produced by all the somatic cells of the body of living beings. These gemmules are also called pangene. Blood carries gemmules from all the body cells to the gonads. These gemmules from all the somatic cells form germ cells in gonads. 
 
        
             
        
        
        
Answer: D is right
Explanation:   It seems both waves have same wavelength.
Because speed = wavelength · frequency  (v = λf)  and
 f = v/λ, so frequency is same.  Because period T = 1/ frequency, also periods are same.  Wave Y has higher amplidude and its energy is greater.
 
        
             
        
        
        
The answer is the bladder