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humans need energy to complete the regular body requirements to digest our food,to breathe,to move,to run,to travel and continue the metabolism of our regular life.

Explanation:energy is essential to life and all living thing organisms.

answer; ///i believe that neither technician a or technician b are correct answer(both are false);

to change your username, you must:

1) make sure what the username you want to change to is allowed in this community

2) contact a administrator (for example, jaysl)

3) through pm, tell the admin what you want to change to

4) if the username is allowed, it will be changed in a matter of seconds (minutes at most)

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