Explanation:
Storing the food helps them to use it in winter and survive because there is very little sunlight available and so they photosynthesis less. When they have extra food they store it in their seeds and when the seed grows it gets it's food from the plant until the plant is able to photosynthesis and produce its food.
 
        
                    
             
        
        
        
C
The respiratory system removes the waste carbon dioxide produced from aerobic respiration in the body.
        
             
        
        
        
Answer:
Destruction of habitats, Introduction of non-native species, pollutions, and the over harvesting of species.
 
        
                    
             
        
        
        
A: between the hydrogen atom of one water molecule and the oxygen atom of another
        
             
        
        
        
Answer:
<h2>A site for the exit of the diphosphates removed from the nucleotide triphosphates.</h2>
Explanation:
Transcription occurs in three steps, i) initiation, ii) elongation, and iii) termination.
Elongation: during elongation , the RNA polymerase add new nucleotides in the growing chain of RNA molecule until it encounter terminator factor, or until it terminate transcription.  RNA polymerase has three prominent channels, i) channel for entry of DNA template strand, ii) channel for exit of DNA strand  and iii) channel for exit of newly synthesized RNA molecule. There are lots of other enzymes which helps in transcription.