<span>Sedentary Lifestyle. The behavior that contributes to unintentional injuries and violence is a risk behavior such as driving without a seat belt, it is a risky behavior that can lead to death or serious injury in a car accident.</span>
        
             
        
        
        
Answer:
Oxygen
Explanation:
Oxygen is the by product of photolysis during photosynthesis whereby water molecules are split to form protons (H+ ions), electrons and oxygen (by product). 
Oxygen is not needed during any of the reactions in photosynthesis and Calvin cycle and will not affect the rate of photosynthesis or possibility of photosynthesis occurring. However, it will affect the process of aerobic respiration instead. 
Carbon dioxide is needed in carbon fixation during the Calvin cycle. Without it, 6 carbon sugars cannot be formed. 
Water is needed for photolysis to produce protons (maintain the electrochemical gradient) and electrons (to replenish lost electrons)
Chlorophyll are pigments that harvest light energy to excite electrons produced from photolysis of water to be passed down the electron transport chain. 
Light is needed as a source of energy to energise the electrons
 
        
             
        
        
        
Answer:
B. It provides the code for the protein
Explanation:
Remember that mRNA stands for Messenger RNA.
 
        
                    
             
        
        
        
There are four basic types of animal tissue, these are connective, epithelial, nervous, and muscle tissues.
 
        
             
        
        
        
An atom is unlikely to react when it is stable. That is when it's shell is complete. Due to the completion of the shell, no other electron can combine through any form of bonding. Hope i helped.