Answer: TDMA(Time division multiple access)
Explanation: Time-division multiple access is the method that is used by GSM(Global system for mobile communication) usually for the separation process of the data.It is a way in which a same frequency is shared by different time slots of signal.It has high flexibility and so thus is helpful for the GSM network and provides easy services of division.It divides the data according to the time period slots in a GSM network.
Answer:
Following is given the solution to each part.
All the comments are given above each step so that they can make the logic clear.
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Explanation:
1. eliminating some diseases
2. improving certain species (like growing bigger apples)