Answer:
A community
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concentration of the enzyme, concentration of the substrate, and temperature. However there are more than three.  A lock and key analogy is used when explaining the specific action of an enzyme with a single substrate.
 
        
             
        
        
        
Regarding cellular phones, the <u>electronic serial number (ESN)</u> is a code used to reset a forgotten pin.
- An electronic serial number (ESN) is the distinctive identification number that the manufacturer embeds or inscribes on the wireless phone's microchip. 
- The ESN is automatically sent to the base station each time a call is placed so that the mobile switching office of the wireless carrier can verify the legitimacy of the call. In the field, the ESN cannot be easily changed. 
- The mobile identification number (MIN), which is used by wireless carriers to identify phones on their network, is different from the ESN.
- To aid in preventing fraud, MINs and ESNs can be electronically checked.
learn more about electronic serial number (ESN) here: brainly.com/question/14917805
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answer: 
photosynthesis converts energy into carbon dioxide and water into oxygen and glucose. glucose is used as food by the plant and oxygen is a by-product . cellular  respiration   energy into glucose into water and carbon dioxide 
water and  carbon dixode are by products and ATP is energy hat that is transformed from