A doctor.
No. Perform is to do, verify is to confirm. For example in the work place the employer may need to verify that an employee has performed her/his duties satisfactorily.
energy
No. The cell does need to expend energy in order to perform its life functions.
enzymes
In order for a Whole Foods employee to get a pay stub, the employee will need to request that a copy of their pay stub and check be either mailed to them or sent to their Whole Foods location. In order to do this, contact Human Resources.
mine craft
simple diffusion and osmosis
yes you have to be a professional comic in order to perform at a comedy club. You might need to take the permission before you start that either by the town court
they need energy
You need to visit the family court that has jurisdiction over your case and ask about the status of your child support order. You may need to take action.
A Direct Order given by a supervisor to an employee who is a Union member is a very specific thing which must be verbalized in a specific manner. The supervisor MUST say "I am giving you a Direct Order." AND MUST tell the employee what will happen if the order is not obeyed. (what discipline will result). The only reason an employee can disobey is if the order was to do something illegal or would put the employee in immediate danger. Otherwise if the employee disagrees with the order they must obey and then they can grieve it later. Obey now, grieve later...
Unlike other professions, like runway models and police officers, there is no height requirement for performing opera singers. You must have the voice and classical training and be able to perform.