PLS HELP :) Thanks! :) In a biometrics research lab, Grant is listed as the laboratory director, while Tamara is listed as a laboratory technician. Both careers fall into the STEM field. Take a moment to research these two positions and explain the difference between them

Lab technician collects the samples from patients and then processes it to get the required result.

Lab director is responsible for the administration of daily operations.

Explanation:

Stem field is Science, Technology, Engineering and Mathematics. The career choice of Tamara and Grant both fall into STEM. Grant have more responsibility than Tamara, although both are in the biometric research lab but Grant has to ensure that all the applicable laws and provisions are followed in the lab and if any deviation is found he will be held responsible for it. Whereas Tamara has responsibility for a single sample only. She is not responsible for others performance.

the first successful, urban blues recording, selling more than 75,000 copies, was made in year 1920.

mamie smith recorded the first commercially successful example of the urban blues,   with the recording of “crazy blues”."crazy blues" was recorded on august 10, 1920, in new york city. within a month of the release of “crazy blues” it had sold 75,000 copies.